diff --git a/Application/Helper/User.php b/Application/Helper/User.php
index 7b9ec71..bfd2b1b 100644
--- a/Application/Helper/User.php
+++ b/Application/Helper/User.php
@@ -31,9 +31,10 @@ public static function getInstance()
 
     /**
      * Creates Stripe API user and adds customerId to user model
+     * Returns customerId for direct usage
      *
      * @param  CoreUser $oUser
-     * @return void
+     * @return string
      */
     public function createStripeUser(CoreUser &$oUser)
     {
@@ -46,5 +47,28 @@ public function createStripeUser(CoreUser &$oUser)
             $oUser->oxuser__stripecustomerid = new Field($oResponse->id);
             $oUser->save();
         }
+
+        return $oUser->oxuser__stripecustomerid->value;
+    }
+
+    /**
+     * Checks if given CustomerId is still valid on Stripe account side
+     *
+     * @param string $sStripeCustomerId
+     * @return bool
+     */
+    public function isValidCustomerId($sStripeCustomerId)
+    {
+        if (empty($sStripeCustomerId)) {
+             return false;
+        }
+
+        $oResponse = Payment::getInstance()->loadStripeApi()->customers->retrieve($sStripeCustomerId);
+
+        if ($oResponse->deleted) {
+            return false;
+        }
+
+        return !empty($oResponse->email);
     }
 }
diff --git a/Application/Model/Request/Card.php b/Application/Model/Request/Card.php
index 61e7ef2..d31bdbb 100644
--- a/Application/Model/Request/Card.php
+++ b/Application/Model/Request/Card.php
@@ -23,10 +23,12 @@ class Card extends Base
      */
     public function addRequestParameters($sStripeCardToken, CoreUser $oUser)
     {
-        if (empty($this->getCustomerId($oUser))) {
-            UserHelper::getInstance()->createStripeUser($oUser);
+        $sStripeCustomerId = $this->getCustomerId($oUser);
+        if (!UserHelper::getInstance()->isValidCustomerId($sStripeCustomerId)) {
+            $sStripeCustomerId = UserHelper::getInstance()->createStripeUser($oUser);
         }
-        $this->sStripeCustomerId = $this->getCustomerId($oUser);
+
+        $this->sStripeCustomerId = $sStripeCustomerId;
         $this->addParameter('source', $sStripeCardToken);
     }
 
diff --git a/Application/Model/Request/PaymentIntent.php b/Application/Model/Request/PaymentIntent.php
index e097965..f92f7d6 100644
--- a/Application/Model/Request/PaymentIntent.php
+++ b/Application/Model/Request/PaymentIntent.php
@@ -8,6 +8,7 @@
 
 use OxidSolutionCatalysts\Stripe\Application\Helper\Order as OrderHelper;
 use OxidSolutionCatalysts\Stripe\Application\Helper\Payment as PaymentHelper;
+use OxidSolutionCatalysts\Stripe\Application\Helper\User as UserHelper;
 use OxidSolutionCatalysts\Stripe\Application\Model\RequestLog;
 use OxidEsales\Eshop\Application\Model\Order as CoreOrder;
 
@@ -39,9 +40,14 @@ public function addRequestParameters(CoreOrder $oOrder, $dAmount, $sReturnUrl, $
 
         $oCoreUser = $oOrder->getUser();
         $sStripeCustomerId = $this->getCustomerId($oCoreUser);
+        if (!UserHelper::getInstance()->isValidCustomerId($sStripeCustomerId)) {
+            $sStripeCustomerId = UserHelper::getInstance()->createStripeUser($oCoreUser);
+        }
+
         if (!empty($sStripeCustomerId)) {
             $this->addParameter('customer', $sStripeCustomerId);
         }
+
         $this->addParameter('receipt_email', $this->getCustomerEmail($oCoreUser));
 
         if ($oPaymentModel->isRedirectUrlNeeded($oOrder) === true) {
diff --git a/Application/Model/TransactionHandler/Base.php b/Application/Model/TransactionHandler/Base.php
index 784af0f..6dee76c 100644
--- a/Application/Model/TransactionHandler/Base.php
+++ b/Application/Model/TransactionHandler/Base.php
@@ -29,7 +29,7 @@ abstract class Base
     protected function logResult($aResult)
     {
         if ((bool)Registry::getConfig()->getShopConfVar('blStripeLogTransactionInfo') === true) {
-            $sMessage = date("Y-m-d h:i:s")." Transaction handled: ".print_r($aResult, true)." \n";
+            $sMessage = (new \DateTimeImmutable())->format('Y-m-d H:i:s')." Transaction handled: ".print_r($aResult, true)." \n";
 
             $sLogFilePath = getShopBasePath().'/log/'.$this->sLogFileName;
             $oLogFile = fopen($sLogFilePath, "a");
diff --git a/Application/views/frontend/tpl/stripecreditcard.tpl b/Application/views/frontend/tpl/stripecreditcard.tpl
index fc64b11..f7daa23 100644
--- a/Application/views/frontend/tpl/stripecreditcard.tpl
+++ b/Application/views/frontend/tpl/stripecreditcard.tpl
@@ -22,7 +22,6 @@
     </div>
 </div>
 
-[{oxstyle include=$oViewConf->getModuleUrl('stripe','out/src/css/stripe.css')}]
 [{oxscript include="https://js.stripe.com/v3/"}]
 [{capture name="stripeComponentsLoad"}]
     var pubKey = '[{$oPaymentModel->getPublishableKey()}]';
diff --git a/Application/views/frontend/tpl/stripesofort.tpl b/Application/views/frontend/tpl/stripesofort.tpl
index 547e743..d0ac7dc 100644
--- a/Application/views/frontend/tpl/stripesofort.tpl
+++ b/Application/views/frontend/tpl/stripesofort.tpl
@@ -17,4 +17,3 @@
         </select>
     </div>
 </div>
-[{oxstyle include=$oViewConf->getModuleUrl('stripe','out/src/css/stripe.css')}]
diff --git a/extend/Application/Controller/PaymentController.php b/extend/Application/Controller/PaymentController.php
index 9bc4117..cd1683b 100644
--- a/extend/Application/Controller/PaymentController.php
+++ b/extend/Application/Controller/PaymentController.php
@@ -138,6 +138,7 @@ public function validatepayment()
                 }
             }
         } catch (\Exception $oEx) {
+            Registry::getLogger()->error($oEx->getTraceAsString());
             $mRet = 'payment';
         }
 
diff --git a/extend/Application/Model/Order.php b/extend/Application/Model/Order.php
index 3847234..9569802 100644
--- a/extend/Application/Model/Order.php
+++ b/extend/Application/Model/Order.php
@@ -207,7 +207,7 @@ public function stripeMarkAsPaid()
     }
 
     /**
-     * Mark order as paid
+     * Mark order's reminder email as sent
      *
      * @return void
      */