diff --git a/changelog/fix-fatals-on-plugin-update b/changelog/fix-fatals-on-plugin-update
new file mode 100644
index 00000000000..a63e19bdb3c
--- /dev/null
+++ b/changelog/fix-fatals-on-plugin-update
@@ -0,0 +1,4 @@
+Significance: minor
+Type: dev
+
+Avoid warnings about fatal error during plugin update due to problems with plugin initialization.
diff --git a/includes/admin/class-wc-rest-payments-settings-controller.php b/includes/admin/class-wc-rest-payments-settings-controller.php
index ffd941feee8..9664d5a54a5 100644
--- a/includes/admin/class-wc-rest-payments-settings-controller.php
+++ b/includes/admin/class-wc-rest-payments-settings-controller.php
@@ -8,7 +8,6 @@
 use WCPay\Constants\Country_Code;
 use WCPay\Fraud_Prevention\Fraud_Risk_Tools;
 use WCPay\Constants\Track_Events;
-use WCPay\Duplicates_Detection_Service;
 
 defined( 'ABSPATH' ) || exit;
 
@@ -37,34 +36,22 @@ class WC_REST_Payments_Settings_Controller extends WC_Payments_REST_Controller {
 	 */
 	protected $account;
 
-
-	/**
-	 * Duplicates detection service.
-	 *
-	 * @var Duplicates_Detection_Service
-	 */
-	private $duplicates_detection_service;
-
-
 	/**
 	 * WC_REST_Payments_Settings_Controller constructor.
 	 *
-	 * @param WC_Payments_API_Client       $api_client WC_Payments_API_Client instance.
-	 * @param WC_Payment_Gateway_WCPay     $wcpay_gateway WC_Payment_Gateway_WCPay instance.
-	 * @param WC_Payments_Account          $account  Account class instance.
-	 * @param Duplicates_Detection_Service $duplicates_detection_service Duplicates detection service.
+	 * @param WC_Payments_API_Client   $api_client WC_Payments_API_Client instance.
+	 * @param WC_Payment_Gateway_WCPay $wcpay_gateway WC_Payment_Gateway_WCPay instance.
+	 * @param WC_Payments_Account      $account  Account class instance.
 	 */
 	public function __construct(
 		WC_Payments_API_Client $api_client,
 		WC_Payment_Gateway_WCPay $wcpay_gateway,
-		WC_Payments_Account $account,
-		Duplicates_Detection_Service $duplicates_detection_service
+		WC_Payments_Account $account
 	) {
 		parent::__construct( $api_client );
 
-		$this->wcpay_gateway                = $wcpay_gateway;
-		$this->account                      = $account;
-		$this->duplicates_detection_service = $duplicates_detection_service;
+		$this->wcpay_gateway = $wcpay_gateway;
+		$this->account       = $account;
 	}
 
 	/**
@@ -486,7 +473,7 @@ public function get_settings(): WP_REST_Response {
 				'enabled_payment_method_ids'          => $enabled_payment_methods,
 				'available_payment_method_ids'        => $available_upe_payment_methods,
 				'payment_method_statuses'             => $this->wcpay_gateway->get_upe_enabled_payment_method_statuses(),
-				'duplicated_payment_method_ids'       => $this->duplicates_detection_service->find_duplicates(),
+				'duplicated_payment_method_ids'       => $this->wcpay_gateway->find_duplicates(),
 				'is_wcpay_enabled'                    => $this->wcpay_gateway->is_enabled(),
 				'is_manual_capture_enabled'           => 'yes' === $this->wcpay_gateway->get_option( 'manual_capture' ),
 				'is_test_mode_enabled'                => WC_Payments::mode()->is_test(),
diff --git a/includes/class-duplicates-detection-service.php b/includes/class-duplicates-detection-service.php
index 3c49a0ab4fe..abf47a4c382 100644
--- a/includes/class-duplicates-detection-service.php
+++ b/includes/class-duplicates-detection-service.php
@@ -11,7 +11,6 @@
 	exit; // Exit if accessed directly.
 }
 
-use Exception;
 use WC_Payments;
 use WCPay\Payment_Methods\Affirm_Payment_Method;
 use WCPay\Payment_Methods\Afterpay_Payment_Method;
diff --git a/includes/class-wc-payment-gateway-wcpay.php b/includes/class-wc-payment-gateway-wcpay.php
index 48e1399e146..12c72c479f3 100644
--- a/includes/class-wc-payment-gateway-wcpay.php
+++ b/includes/class-wc-payment-gateway-wcpay.php
@@ -30,6 +30,7 @@
 use WCPay\Core\Server\Request\List_Charge_Refunds;
 use WCPay\Core\Server\Request\Refund_Charge;
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Fraud_Prevention\Fraud_Prevention_Service;
 use WCPay\Fraud_Prevention\Fraud_Risk_Tools;
 use WCPay\Internal\Payment\State\AuthenticationRequiredState;
@@ -196,6 +197,13 @@ class WC_Payment_Gateway_WCPay extends WC_Payment_Gateway_CC {
 	 */
 	protected $duplicate_payment_prevention_service;
 
+	/**
+	 * Duplicate payment methods detection service
+	 *
+	 * @var Duplicates_Detection_Service
+	 */
+	protected $duplicate_payment_methods_detection_service;
+
 	/**
 	 * WC_Payments_Localization_Service instance.
 	 *
@@ -246,6 +254,7 @@ class WC_Payment_Gateway_WCPay extends WC_Payment_Gateway_CC {
 	 * @param Duplicate_Payment_Prevention_Service $duplicate_payment_prevention_service - Service for preventing duplicate payments.
 	 * @param WC_Payments_Localization_Service     $localization_service                 - Localization service instance.
 	 * @param WC_Payments_Fraud_Service            $fraud_service                        - Fraud service instance.
+	 * @param Duplicates_Detection_Service         $duplicate_payment_methods_detection_service - Service for finding duplicate enabled payment methods.
 	 */
 	public function __construct(
 		WC_Payments_API_Client $payments_api_client,
@@ -259,22 +268,24 @@ public function __construct(
 		WC_Payments_Order_Service $order_service,
 		Duplicate_Payment_Prevention_Service $duplicate_payment_prevention_service,
 		WC_Payments_Localization_Service $localization_service,
-		WC_Payments_Fraud_Service $fraud_service
+		WC_Payments_Fraud_Service $fraud_service,
+		Duplicates_Detection_Service $duplicate_payment_methods_detection_service
 	) {
 		$this->payment_methods = $payment_methods;
 		$this->payment_method  = $payment_method;
 		$this->stripe_id       = $payment_method->get_id();
 
-		$this->payments_api_client                  = $payments_api_client;
-		$this->account                              = $account;
-		$this->customer_service                     = $customer_service;
-		$this->token_service                        = $token_service;
-		$this->action_scheduler_service             = $action_scheduler_service;
-		$this->failed_transaction_rate_limiter      = $failed_transaction_rate_limiter;
-		$this->order_service                        = $order_service;
-		$this->duplicate_payment_prevention_service = $duplicate_payment_prevention_service;
-		$this->localization_service                 = $localization_service;
-		$this->fraud_service                        = $fraud_service;
+		$this->payments_api_client                         = $payments_api_client;
+		$this->account                                     = $account;
+		$this->customer_service                            = $customer_service;
+		$this->token_service                               = $token_service;
+		$this->action_scheduler_service                    = $action_scheduler_service;
+		$this->failed_transaction_rate_limiter             = $failed_transaction_rate_limiter;
+		$this->order_service                               = $order_service;
+		$this->duplicate_payment_prevention_service        = $duplicate_payment_prevention_service;
+		$this->localization_service                        = $localization_service;
+		$this->fraud_service                               = $fraud_service;
+		$this->duplicate_payment_methods_detection_service = $duplicate_payment_methods_detection_service;
 
 		$this->id                 = static::GATEWAY_ID;
 		$this->icon               = $this->get_theme_icon();
@@ -4346,6 +4357,15 @@ public function get_method_description() {
 		return $description;
 	}
 
+	/**
+	 * Calls duplicate payment methods detection service to find duplicates.
+	 * This method acts as a wrapper. The approach should be reverted once
+	 * https://github.com/Automattic/woocommerce-payments/issues/7464 is resolved.
+	 */
+	public function find_duplicates() {
+		return $this->duplicate_payment_methods_detection_service->find_duplicates();
+	}
+
 	// Start: Deprecated functions.
 
 	/**
diff --git a/includes/class-wc-payments.php b/includes/class-wc-payments.php
index 9dbd87c85df..e465834adc0 100644
--- a/includes/class-wc-payments.php
+++ b/includes/class-wc-payments.php
@@ -538,7 +538,7 @@ public static function init() {
 		foreach ( $payment_methods as $payment_method ) {
 			self::$payment_method_map[ $payment_method->get_id() ] = $payment_method;
 
-			$split_gateway = new WC_Payment_Gateway_WCPay( self::$api_client, self::$account, self::$customer_service, self::$token_service, self::$action_scheduler_service, $payment_method, $payment_methods, self::$failed_transaction_rate_limiter, self::$order_service, self::$duplicate_payment_prevention_service, self::$localization_service, self::$fraud_service );
+			$split_gateway = new WC_Payment_Gateway_WCPay( self::$api_client, self::$account, self::$customer_service, self::$token_service, self::$action_scheduler_service, $payment_method, $payment_methods, self::$failed_transaction_rate_limiter, self::$order_service, self::$duplicate_payment_prevention_service, self::$localization_service, self::$fraud_service, self::$duplicates_detection_service );
 
 			// Card gateway hooks are registered once below.
 			if ( 'card' !== $payment_method->get_id() ) {
@@ -1020,7 +1020,7 @@ public static function init_rest_api() {
 		$reporting_controller->register_routes();
 
 		include_once WCPAY_ABSPATH . 'includes/admin/class-wc-rest-payments-settings-controller.php';
-		$settings_controller = new WC_REST_Payments_Settings_Controller( self::$api_client, self::get_gateway(), self::$account, self::$duplicates_detection_service );
+		$settings_controller = new WC_REST_Payments_Settings_Controller( self::$api_client, self::get_gateway(), self::$account );
 		$settings_controller->register_routes();
 
 		include_once WCPAY_ABSPATH . 'includes/admin/class-wc-rest-payments-reader-controller.php';
diff --git a/tests/unit/admin/test-class-wc-rest-payments-settings-controller.php b/tests/unit/admin/test-class-wc-rest-payments-settings-controller.php
index 7c152626ad0..6bfaff2b816 100644
--- a/tests/unit/admin/test-class-wc-rest-payments-settings-controller.php
+++ b/tests/unit/admin/test-class-wc-rest-payments-settings-controller.php
@@ -175,9 +175,10 @@ public function set_up() {
 			$order_service,
 			$mock_dpps,
 			$this->mock_localization_service,
-			$this->mock_fraud_service
+			$this->mock_fraud_service,
+			$this->mock_duplicates_detection_service
 		);
-		$this->controller = new WC_REST_Payments_Settings_Controller( $this->mock_api_client, $this->gateway, $this->mock_wcpay_account, $this->mock_duplicates_detection_service );
+		$this->controller = new WC_REST_Payments_Settings_Controller( $this->mock_api_client, $this->gateway, $this->mock_wcpay_account );
 
 		$this->mock_api_client
 			->method( 'is_server_connected' )
diff --git a/tests/unit/admin/test-class-wc-rest-payments-tos-controller.php b/tests/unit/admin/test-class-wc-rest-payments-tos-controller.php
index 9597390a9a0..f2f5b4274f7 100644
--- a/tests/unit/admin/test-class-wc-rest-payments-tos-controller.php
+++ b/tests/unit/admin/test-class-wc-rest-payments-tos-controller.php
@@ -9,6 +9,7 @@
 use WCPay\Core\Server\Request\Add_Account_Tos_Agreement;
 use WCPay\Database_Cache;
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Payment_Methods\CC_Payment_Method;
 use WCPay\Session_Rate_Limiter;
 
@@ -55,16 +56,17 @@ public function set_up() {
 			->disableOriginalConstructor()
 			->getMock();
 
-		$mock_wcpay_account       = $this->createMock( WC_Payments_Account::class );
-		$mock_fraud_service       = $this->createMock( WC_Payments_Fraud_Service::class );
-		$mock_db_cache            = $this->createMock( Database_Cache::class );
-		$mock_session_service     = $this->createMock( WC_Payments_Session_Service::class );
-		$customer_service         = new WC_Payments_Customer_Service( $mock_api_client, $mock_wcpay_account, $mock_db_cache, $mock_session_service );
-		$token_service            = new WC_Payments_Token_Service( $mock_api_client, $customer_service );
-		$order_service            = new WC_Payments_Order_Service( $this->createMock( WC_Payments_API_Client::class ) );
-		$action_scheduler_service = new WC_Payments_Action_Scheduler_Service( $mock_api_client, $order_service );
-		$mock_dpps                = $this->createMock( Duplicate_Payment_Prevention_Service::class );
-		$mock_payment_method      = $this->createMock( CC_Payment_Method::class );
+		$mock_wcpay_account                = $this->createMock( WC_Payments_Account::class );
+		$mock_fraud_service                = $this->createMock( WC_Payments_Fraud_Service::class );
+		$mock_db_cache                     = $this->createMock( Database_Cache::class );
+		$mock_session_service              = $this->createMock( WC_Payments_Session_Service::class );
+		$customer_service                  = new WC_Payments_Customer_Service( $mock_api_client, $mock_wcpay_account, $mock_db_cache, $mock_session_service );
+		$token_service                     = new WC_Payments_Token_Service( $mock_api_client, $customer_service );
+		$order_service                     = new WC_Payments_Order_Service( $this->createMock( WC_Payments_API_Client::class ) );
+		$action_scheduler_service          = new WC_Payments_Action_Scheduler_Service( $mock_api_client, $order_service );
+		$mock_dpps                         = $this->createMock( Duplicate_Payment_Prevention_Service::class );
+		$mock_payment_method               = $this->createMock( CC_Payment_Method::class );
+		$mock_duplicates_detection_service = $this->createMock( Duplicates_Detection_Service::class );
 
 		$this->gateway    = new WC_Payment_Gateway_WCPay(
 			$mock_api_client,
@@ -78,7 +80,8 @@ public function set_up() {
 			$order_service,
 			$mock_dpps,
 			$this->createMock( WC_Payments_Localization_Service::class ),
-			$mock_fraud_service
+			$mock_fraud_service,
+			$mock_duplicates_detection_service
 		);
 		$this->controller = new WC_REST_Payments_Tos_Controller( $mock_api_client, $this->gateway, $mock_wcpay_account );
 
diff --git a/tests/unit/payment-methods/test-class-upe-payment-gateway.php b/tests/unit/payment-methods/test-class-upe-payment-gateway.php
index 8260f8707b5..137a283a944 100644
--- a/tests/unit/payment-methods/test-class-upe-payment-gateway.php
+++ b/tests/unit/payment-methods/test-class-upe-payment-gateway.php
@@ -33,6 +33,7 @@
 use WC_Payments_Localization_Service;
 use WCPay\Core\Server\Request\Create_And_Confirm_Intention;
 use WCPay\Database_Cache;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Internal\Service\Level3Service;
 use WCPay\Internal\Service\OrderService;
 
@@ -170,6 +171,13 @@ class UPE_Payment_Gateway_Test extends WCPAY_UnitTestCase {
 	 */
 	private $mock_fraud_service;
 
+	/**
+	 * Mock Duplicates Detection Service.
+	 *
+	 * @var Duplicates_Detection_Service
+	 */
+	private $mock_duplicates_detection_service;
+
 	/**
 	 * Pre-test setup
 	 */
@@ -230,8 +238,9 @@ public function set_up() {
 
 		$this->mock_dpps = $this->createMock( Duplicate_Payment_Prevention_Service::class );
 
-		$this->mock_localization_service = $this->createMock( WC_Payments_Localization_Service::class );
-		$this->mock_fraud_service        = $this->createMock( WC_Payments_Fraud_Service::class );
+		$this->mock_localization_service         = $this->createMock( WC_Payments_Localization_Service::class );
+		$this->mock_fraud_service                = $this->createMock( WC_Payments_Fraud_Service::class );
+		$this->mock_duplicates_detection_service = $this->createMock( Duplicates_Detection_Service::class );
 
 		$this->mock_payment_methods = [];
 		$payment_method_classes     = [
@@ -294,6 +303,7 @@ public function set_up() {
 					$this->mock_dpps,
 					$this->mock_localization_service,
 					$this->mock_fraud_service,
+					$this->mock_duplicates_detection_service,
 				]
 			)
 			->setMethods(
@@ -961,7 +971,8 @@ public function test_get_upe_available_payment_methods( $payment_methods, $expec
 			$this->mock_order_service,
 			$this->mock_dpps,
 			$this->mock_localization_service,
-			$this->mock_fraud_service
+			$this->mock_fraud_service,
+			$this->mock_duplicates_detection_service
 		);
 
 		$this->assertEquals( $expected_result, $gateway->get_upe_available_payment_methods() );
diff --git a/tests/unit/payment-methods/test-class-upe-split-payment-gateway.php b/tests/unit/payment-methods/test-class-upe-split-payment-gateway.php
index 22653a4cba9..8ac1db139a5 100644
--- a/tests/unit/payment-methods/test-class-upe-split-payment-gateway.php
+++ b/tests/unit/payment-methods/test-class-upe-split-payment-gateway.php
@@ -35,6 +35,7 @@
 use WC_Payments_Localization_Service;
 use WCPay\Core\Server\Request\Create_And_Confirm_Intention;
 use WCPay\Database_Cache;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Internal\Service\Level3Service;
 use WCPay\Internal\Service\OrderService;
 /**
@@ -158,6 +159,13 @@ class UPE_Split_Payment_Gateway_Test extends WCPAY_UnitTestCase {
 	 */
 	private $mock_fraud_service;
 
+		/**
+		 * Mock Duplicates Detection Service.
+		 *
+		 * @var Duplicates_Detection_Service
+		 */
+	private $mock_duplicates_detection_service;
+
 	/**
 	 * Mapping for payment ID to payment method.
 	 *
@@ -247,8 +255,9 @@ public function set_up() {
 
 		$this->mock_dpps = $this->createMock( Duplicate_Payment_Prevention_Service::class );
 
-		$this->mock_localization_service = $this->createMock( WC_Payments_Localization_Service::class );
-		$this->mock_fraud_service        = $this->createMock( WC_Payments_Fraud_Service::class );
+		$this->mock_localization_service         = $this->createMock( WC_Payments_Localization_Service::class );
+		$this->mock_fraud_service                = $this->createMock( WC_Payments_Fraud_Service::class );
+		$this->mock_duplicates_detection_service = $this->createMock( Duplicates_Detection_Service::class );
 
 		// Arrange: Define a $_POST array which includes the payment method,
 		// so that get_payment_method_from_request() does not throw error.
@@ -281,6 +290,7 @@ public function set_up() {
 						$this->mock_dpps,
 						$this->mock_localization_service,
 						$this->mock_fraud_service,
+						$this->mock_duplicates_detection_service,
 					]
 				)
 				->setMethods(
@@ -1060,6 +1070,7 @@ public function test_get_payment_methods_with_request_context() {
 					$this->mock_dpps,
 					$this->mock_localization_service,
 					$this->mock_fraud_service,
+					$this->mock_duplicates_detection_service,
 				]
 			)
 			->setMethods( [ 'get_payment_methods_from_gateway_id' ] )
@@ -1105,6 +1116,7 @@ public function test_get_payment_methods_without_request_context() {
 					$this->mock_dpps,
 					$this->mock_localization_service,
 					$this->mock_fraud_service,
+					$this->mock_duplicates_detection_service,
 				]
 			)
 			->setMethods( [ 'get_payment_methods_from_gateway_id' ] )
@@ -1149,6 +1161,7 @@ public function test_get_payment_methods_without_request_context_or_token() {
 					$this->mock_dpps,
 					$this->mock_localization_service,
 					$this->mock_fraud_service,
+					$this->mock_duplicates_detection_service,
 				]
 			)
 			->setMethods(
@@ -1202,6 +1215,7 @@ public function test_get_payment_methods_from_gateway_id_upe() {
 					$this->mock_dpps,
 					$this->mock_localization_service,
 					$this->mock_fraud_service,
+					$this->mock_duplicates_detection_service,
 				]
 			)
 			->onlyMethods(
diff --git a/tests/unit/test-class-wc-payment-gateway-wcpay-payment-types.php b/tests/unit/test-class-wc-payment-gateway-wcpay-payment-types.php
index 8caaadb9ea4..c4ae5f729ee 100644
--- a/tests/unit/test-class-wc-payment-gateway-wcpay-payment-types.php
+++ b/tests/unit/test-class-wc-payment-gateway-wcpay-payment-types.php
@@ -9,6 +9,7 @@
 use WCPay\Core\Server\Request\Create_And_Confirm_Intention;
 use WCPay\Constants\Payment_Method;
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Session_Rate_Limiter;
 use WCPay\Fraud_Prevention\Fraud_Prevention_Service;
 use WCPay\Payment_Methods\CC_Payment_Method;
@@ -153,6 +154,7 @@ public function set_up() {
 					$mock_dpps,
 					$this->createMock( WC_Payments_Localization_Service::class ),
 					$this->createMock( WC_Payments_Fraud_Service::class ),
+					$this->createMock( Duplicates_Detection_Service::class ),
 				]
 			)
 			->setMethods(
diff --git a/tests/unit/test-class-wc-payment-gateway-wcpay-process-payment.php b/tests/unit/test-class-wc-payment-gateway-wcpay-process-payment.php
index 79f6cd75d9b..3962272376d 100644
--- a/tests/unit/test-class-wc-payment-gateway-wcpay-process-payment.php
+++ b/tests/unit/test-class-wc-payment-gateway-wcpay-process-payment.php
@@ -15,6 +15,7 @@
 use WCPay\Exceptions\Connection_Exception;
 use WCPay\Session_Rate_Limiter;
 use WCPay\Constants\Payment_Method;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Payment_Methods\CC_Payment_Method;
 
 // Need to use WC_Mock_Data_Store.
@@ -167,6 +168,7 @@ public function set_up() {
 					$this->mock_dpps,
 					$this->createMock( WC_Payments_Localization_Service::class ),
 					$this->createMock( WC_Payments_Fraud_Service::class ),
+					$this->createMock( Duplicates_Detection_Service::class ),
 				]
 			)
 			->setMethods(
diff --git a/tests/unit/test-class-wc-payment-gateway-wcpay-process-refund.php b/tests/unit/test-class-wc-payment-gateway-wcpay-process-refund.php
index 49746ef3ca3..24f06d99933 100644
--- a/tests/unit/test-class-wc-payment-gateway-wcpay-process-refund.php
+++ b/tests/unit/test-class-wc-payment-gateway-wcpay-process-refund.php
@@ -12,6 +12,7 @@
 use WCPay\Core\Server\Request\Refund_Charge;
 use WCPay\Core\Server\Response;
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Exceptions\API_Exception;
 use WCPay\Payment_Methods\CC_Payment_Method;
 use WCPay\Session_Rate_Limiter;
@@ -104,7 +105,8 @@ public function set_up() {
 			$this->mock_order_service,
 			$mock_dpps,
 			$this->createMock( WC_Payments_Localization_Service::class ),
-			$this->createMock( WC_Payments_Fraud_Service::class )
+			$this->createMock( WC_Payments_Fraud_Service::class ),
+			$this->createMock( Duplicates_Detection_Service::class )
 		);
 	}
 
diff --git a/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions-payment-method-order-note.php b/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions-payment-method-order-note.php
index 9715d61a193..fd4352ac0b2 100644
--- a/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions-payment-method-order-note.php
+++ b/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions-payment-method-order-note.php
@@ -6,6 +6,7 @@
  */
 
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Payment_Methods\CC_Payment_Method;
 use WCPay\Session_Rate_Limiter;
 
@@ -139,7 +140,8 @@ public function set_up() {
 			$this->mock_order_service,
 			$mock_dpps,
 			$this->createMock( WC_Payments_Localization_Service::class ),
-			$this->createMock( WC_Payments_Fraud_Service::class )
+			$this->createMock( WC_Payments_Fraud_Service::class ),
+			$this->createMock( Duplicates_Detection_Service::class ),
 		);
 		$this->wcpay_gateway->init_hooks();
 
diff --git a/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions-process-payment.php b/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions-process-payment.php
index 434bbd971fd..622e7cbe1d9 100644
--- a/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions-process-payment.php
+++ b/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions-process-payment.php
@@ -10,6 +10,7 @@
 use WCPay\Constants\Order_Status;
 use WCPay\Constants\Intent_Status;
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Payment_Methods\CC_Payment_Method;
 use WCPay\Session_Rate_Limiter;
 
@@ -160,6 +161,7 @@ public function set_up() {
 					$mock_dpps,
 					$this->createMock( WC_Payments_Localization_Service::class ),
 					$this->createMock( WC_Payments_Fraud_Service::class ),
+					$this->createMock( Duplicates_Detection_Service::class ),
 				]
 			)
 			->setMethods(
diff --git a/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions.php b/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions.php
index a5b33c1581c..151b3b919fe 100644
--- a/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions.php
+++ b/tests/unit/test-class-wc-payment-gateway-wcpay-subscriptions.php
@@ -8,6 +8,7 @@
 use PHPUnit\Framework\MockObject\MockObject;
 use WCPay\Core\Server\Request\Create_And_Confirm_Intention;
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Exceptions\API_Exception;
 use WCPay\Internal\Service\Level3Service;
 use WCPay\Internal\Service\OrderService;
@@ -102,6 +103,13 @@ class WC_Payment_Gateway_WCPay_Subscriptions_Test extends WCPAY_UnitTestCase {
 	 */
 	private $mock_fraud_service;
 
+	/**
+	 * Mock Duplicates Detection Service.
+	 *
+	 * @var Duplicates_Detection_Service
+	 */
+	private $mock_duplicates_detection_service;
+
 	public function set_up() {
 		parent::set_up();
 
@@ -136,8 +144,9 @@ public function set_up() {
 
 		$this->mock_dpps = $this->createMock( Duplicate_Payment_Prevention_Service::class );
 
-		$this->mock_localization_service = $this->createMock( WC_Payments_Localization_Service::class );
-		$this->mock_fraud_service        = $this->createMock( WC_Payments_Fraud_Service::class );
+		$this->mock_localization_service         = $this->createMock( WC_Payments_Localization_Service::class );
+		$this->mock_fraud_service                = $this->createMock( WC_Payments_Fraud_Service::class );
+		$this->mock_duplicates_detection_service = $this->createMock( Duplicates_Detection_Service::class );
 
 		$mock_payment_method = $this->getMockBuilder( CC_Payment_Method::class )
 			->setConstructorArgs( [ $this->mock_token_service ] )
@@ -156,7 +165,8 @@ public function set_up() {
 			$this->order_service,
 			$this->mock_dpps,
 			$this->mock_localization_service,
-			$this->mock_fraud_service
+			$this->mock_fraud_service,
+			$this->mock_duplicates_detection_service,
 		);
 		$this->wcpay_gateway->init_hooks();
 		WC_Payments::set_gateway( $this->wcpay_gateway );
@@ -830,7 +840,8 @@ public function test_adds_custom_payment_meta_input_fallback_until_subs_3_0_7()
 			$this->order_service,
 			$this->mock_dpps,
 			$this->mock_localization_service,
-			$this->mock_fraud_service
+			$this->mock_fraud_service,
+			$this->mock_duplicates_detection_service,
 		);
 
 		// Ensure the has_attached_integration_hooks property is set to false so callbacks can be attached in maybe_init_subscriptions().
@@ -864,7 +875,8 @@ public function test_does_not_add_custom_payment_meta_input_fallback_for_subs_3_
 			$this->order_service,
 			$this->mock_dpps,
 			$this->mock_localization_service,
-			$this->mock_fraud_service
+			$this->mock_fraud_service,
+			$this->mock_duplicates_detection_service,
 		);
 
 		$this->assertFalse( has_action( 'woocommerce_admin_order_data_after_billing_address' ) );
diff --git a/tests/unit/test-class-wc-payment-gateway-wcpay.php b/tests/unit/test-class-wc-payment-gateway-wcpay.php
index 38b299129d8..c485a19ecb3 100644
--- a/tests/unit/test-class-wc-payment-gateway-wcpay.php
+++ b/tests/unit/test-class-wc-payment-gateway-wcpay.php
@@ -17,6 +17,7 @@
 use WCPay\Constants\Intent_Status;
 use WCPay\Constants\Payment_Method;
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Exceptions\Amount_Too_Small_Exception;
 use WCPay\Exceptions\API_Exception;
 use WCPay\Exceptions\Process_Payment_Exception;
@@ -177,6 +178,13 @@ class WC_Payment_Gateway_WCPay_Test extends WCPAY_UnitTestCase {
 	 */
 	private $mock_fraud_service;
 
+		/**
+		 * Mock Duplicates Detection Service.
+		 *
+		 * @var Duplicates_Detection_Service
+		 */
+	private $mock_duplicates_detection_service;
+
 	/**
 	 * Pre-test setup
 	 */
@@ -229,7 +237,8 @@ public function set_up() {
 					'currency_code' => 'usd',
 				]
 			);
-		$this->mock_fraud_service = $this->createMock( WC_Payments_Fraud_Service::class );
+		$this->mock_fraud_service                = $this->createMock( WC_Payments_Fraud_Service::class );
+		$this->mock_duplicates_detection_service = $this->createMock( Duplicates_Detection_Service::class );
 
 		$this->mock_payment_method = $this->getMockBuilder( CC_Payment_Method::class )
 			->setConstructorArgs( [ $this->mock_token_service ] )
@@ -897,6 +906,7 @@ public function test_process_redirect_setup_intent_succeded() {
 					$this->mock_dpps,
 					$this->mock_localization_service,
 					$this->mock_fraud_service,
+					$this->mock_duplicates_detection_service,
 				]
 			)
 			->onlyMethods(
@@ -1004,6 +1014,7 @@ public function test_process_redirect_payment_save_payment_token() {
 					$this->mock_dpps,
 					$this->mock_localization_service,
 					$this->mock_fraud_service,
+					$this->mock_duplicates_detection_service,
 				]
 			)
 			->onlyMethods(
@@ -3203,6 +3214,7 @@ private function get_partial_mock_for_gateway( array $methods = [], array $const
 			$this->mock_dpps,
 			$this->mock_localization_service,
 			$this->mock_fraud_service,
+			$this->mock_duplicates_detection_service,
 		];
 
 		foreach ( $constructor_replacement as $key => $value ) {
@@ -3688,7 +3700,8 @@ private function init_gateways() {
 				$this->order_service,
 				$this->mock_dpps,
 				$this->mock_localization_service,
-				$this->mock_fraud_service
+				$this->mock_fraud_service,
+				$this->mock_duplicates_detection_service
 			);
 		}
 
diff --git a/tests/unit/test-class-wc-payments-express-checkout-button-display-handler.php b/tests/unit/test-class-wc-payments-express-checkout-button-display-handler.php
index 1bd4dbeeafc..8a6a1b7f4f3 100644
--- a/tests/unit/test-class-wc-payments-express-checkout-button-display-handler.php
+++ b/tests/unit/test-class-wc-payments-express-checkout-button-display-handler.php
@@ -7,6 +7,7 @@
 
 use PHPUnit\Framework\MockObject\MockObject;
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Payment_Methods\CC_Payment_Method;
 use WCPay\Session_Rate_Limiter;
 use WCPay\WooPay\WooPay_Utilities;
@@ -177,7 +178,8 @@ private function make_wcpay_gateway() {
 			$mock_order_service,
 			$mock_dpps,
 			$this->createMock( WC_Payments_Localization_Service::class ),
-			$this->createMock( WC_Payments_Fraud_Service::class )
+			$this->createMock( WC_Payments_Fraud_Service::class ),
+			$this->createMock( Duplicates_Detection_Service::class )
 		);
 	}
 
diff --git a/tests/unit/test-class-wc-payments-express-checkout-button-helper.php b/tests/unit/test-class-wc-payments-express-checkout-button-helper.php
index 8b3312dcf30..3dc7878ba39 100644
--- a/tests/unit/test-class-wc-payments-express-checkout-button-helper.php
+++ b/tests/unit/test-class-wc-payments-express-checkout-button-helper.php
@@ -6,6 +6,7 @@
  */
 
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Payment_Methods\CC_Payment_Method;
 use WCPay\Session_Rate_Limiter;
 
@@ -91,7 +92,8 @@ private function make_wcpay_gateway() {
 			$mock_order_service,
 			$mock_dpps,
 			$this->createMock( WC_Payments_Localization_Service::class ),
-			$this->createMock( WC_Payments_Fraud_Service::class )
+			$this->createMock( WC_Payments_Fraud_Service::class ),
+			$this->createMock( Duplicates_Detection_Service::class )
 		);
 	}
 
diff --git a/tests/unit/test-class-wc-payments-payment-request-button-handler.php b/tests/unit/test-class-wc-payments-payment-request-button-handler.php
index fe703f8ee94..672a4cdaeac 100644
--- a/tests/unit/test-class-wc-payments-payment-request-button-handler.php
+++ b/tests/unit/test-class-wc-payments-payment-request-button-handler.php
@@ -7,6 +7,7 @@
 
 use WCPay\Constants\Country_Code;
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Payment_Methods\CC_Payment_Method;
 use WCPay\Session_Rate_Limiter;
 
@@ -223,7 +224,8 @@ private function make_wcpay_gateway() {
 			$mock_order_service,
 			$mock_dpps,
 			$this->createMock( WC_Payments_Localization_Service::class ),
-			$this->createMock( WC_Payments_Fraud_Service::class )
+			$this->createMock( WC_Payments_Fraud_Service::class ),
+			$this->createMock( Duplicates_Detection_Service::class )
 		);
 	}
 
diff --git a/tests/unit/test-class-wc-payments-woopay-button-handler.php b/tests/unit/test-class-wc-payments-woopay-button-handler.php
index 1c87f05a4b7..dbb5cefe960 100644
--- a/tests/unit/test-class-wc-payments-woopay-button-handler.php
+++ b/tests/unit/test-class-wc-payments-woopay-button-handler.php
@@ -6,6 +6,7 @@
  */
 
 use WCPay\Duplicate_Payment_Prevention_Service;
+use WCPay\Duplicates_Detection_Service;
 use WCPay\Payment_Methods\CC_Payment_Method;
 use WCPay\Session_Rate_Limiter;
 use WCPay\WooPay\WooPay_Utilities;
@@ -163,7 +164,8 @@ private function make_wcpay_gateway() {
 			$mock_order_service,
 			$mock_dpps,
 			$this->createMock( WC_Payments_Localization_Service::class ),
-			$this->createMock( WC_Payments_Fraud_Service::class )
+			$this->createMock( WC_Payments_Fraud_Service::class ),
+			$this->createMock( Duplicates_Detection_Service::class )
 		);
 	}