diff --git a/README.txt b/README.txt
index b9159af..df59c1e 100755
--- a/README.txt
+++ b/README.txt
@@ -158,6 +158,10 @@ Alternatively you could look into using WooCommerce "Early renewals": [https://d
 
 ==== End Log ====
 
+= 1.12.3 =
+* Fixed: Initial charge description no longer contains " + " when no extra products are purchased.
+* Fixed: Filling in 0 in the trial field tricking us into adding a campaign to the product, also resulting in an empty `initialCharge.description` and being unable to check out.
+
 = 1.12.2 =
 * Fixed: Fixed an issue where `initialCharge.description` was empty. It cannot be empty under any circumstances.
 
diff --git a/includes/wc-gateway-vipps-recurring.php b/includes/wc-gateway-vipps-recurring.php
index e175635..8e92e68 100755
--- a/includes/wc-gateway-vipps-recurring.php
+++ b/includes/wc-gateway-vipps-recurring.php
@@ -1471,16 +1471,20 @@ public function process_payment( $order_id, bool $retry = true, bool $previous_e
 			$is_zero_amount      = (int) $order->get_total() === 0 || $is_gateway_change;
 			$capture_immediately = $is_virtual || $direct_capture;
 			$has_synced_product  = WC_Subscriptions_Synchroniser::subscription_contains_synced_product( $subscription );
-			$has_trial           = WC_Subscriptions_Product::get_trial_length( $product ) !== null;
+			$has_trial           = (bool) WC_Subscriptions_Product::get_trial_length( $product );
 
 			$sign_up_fee       = WC_Subscriptions_Order::get_sign_up_fee( $order );
 			$has_campaign      = $has_trial || $has_synced_product || $is_zero_amount || $order->get_total_discount() !== 0.00 || $is_subscription_switch || $sign_up_fee;
 			$has_free_campaign = $is_subscription_switch || $sign_up_fee || $has_synced_product || $has_trial;
 
 			if ( ! $is_zero_amount ) {
-				$initial_charge_description = WC_Vipps_Recurring_Helper::get_product_description( $parent_product ) . ' + ' . $extra_initial_charge_description;
-				if ( $has_campaign && ! empty( $extra_initial_charge_description ) ) {
-					$initial_charge_description = $extra_initial_charge_description;
+				$initial_charge_description = WC_Vipps_Recurring_Helper::get_product_description( $parent_product );
+				if ( ! empty( $extra_initial_charge_description ) ) {
+					$initial_charge_description .= ' + ' . $extra_initial_charge_description;
+
+					if ( $has_campaign ) {
+						$initial_charge_description = $extra_initial_charge_description;
+					}
 				}
 
 				$agreement_body = array_merge( $agreement_body, [
diff --git a/includes/wc-vipps-recurring-api.php b/includes/wc-vipps-recurring-api.php
index e8c2ae8..0966c06 100755
--- a/includes/wc-vipps-recurring-api.php
+++ b/includes/wc-vipps-recurring-api.php
@@ -106,11 +106,12 @@ private function process_agreement_body( $body ): array {
 			}
 		}
 
-		if ( isset( $body['initialCharge']['description'] ) ) {
+		if ( isset( $body['initialCharge'] ) ) {
 			$charge_description = ! empty( $body['initialCharge']['description'] )
 				? $body['initialCharge']['description']
 				: 'Mangler produktbeskrivelse';
 
+			$body['initialCharge']['description'] = $charge_description;
 			if ( strlen( $charge_description ) > 45 ) {
 				$body['initialCharge']['description'] = mb_substr( $charge_description, 0, 42 ) . '...';
 			}
diff --git a/woo-vipps-recurring.php b/woo-vipps-recurring.php
index 554f020..6612b30 100755
--- a/woo-vipps-recurring.php
+++ b/woo-vipps-recurring.php
@@ -5,7 +5,7 @@
  * Description: Offer recurring payments with Vipps for WooCommerce Subscriptions
  * Author: Everyday AS
  * Author URI: https://everyday.no
- * Version: 1.12.2
+ * Version: 1.12.3
  * Requires at least: 4.4
  * Tested up to: 5.8
  * WC tested up to: 6.0
@@ -17,7 +17,7 @@
 
 // phpcs:disable WordPress.Files.FileName
 
-define( 'WC_VIPPS_RECURRING_VERSION', '1.12.2' );
+define( 'WC_VIPPS_RECURRING_VERSION', '1.12.3' );
 
 add_action( 'plugins_loaded', 'woocommerce_gateway_vipps_recurring_init' );