diff --git a/functions.php b/functions.php
index 11dbf43..8d4e93b 100644
--- a/functions.php
+++ b/functions.php
@@ -283,6 +283,7 @@ function quiztech_handle_credit_purchase_submission() {
         exit;
     }
 
+    log_to_file("Stripe - Sanitize inputs");
     // Sanitize inputs
     $user_id = get_current_user_id();
     $package_id = isset( $_POST['package_id'] ) ? sanitize_key( $_POST['package_id'] ) : '';