diff --git a/functions.php b/functions.php
index 7119b36..5a615b0 100644
--- a/functions.php
+++ b/functions.php
@@ -203,13 +203,23 @@ function quiztech_handle_credit_purchase_submission() {
         return;
     }
 
+    // Get the Manage Credits page URL reliably
+    $manage_credits_page = get_page_by_path('manage-credits'); // Assumes page slug is 'manage-credits'
+    if (!$manage_credits_page) {
+        // Fallback or error if page doesn't exist
+        wp_die(esc_html__('Manage Credits page not found. Cannot process purchase.', 'quiztech'));
+        exit;
+    }
+    $manage_credits_url = get_permalink($manage_credits_page->ID);
+
+
     // Verify nonce
     if ( ! isset( $_POST['quiztech_buy_credits_nonce'] ) || ! wp_verify_nonce( $_POST['quiztech_buy_credits_nonce'], 'quiztech_buy_credits_action' ) ) {
         // Nonce is invalid, redirect back with error
         $redirect_url = add_query_arg( array(
             'purchase_status' => 'error',
             'message' => urlencode( __( 'Security check failed. Please try again.', 'quiztech' ) )
-        ), get_permalink() ); // Assumes this runs when get_permalink() refers to the Manage Credits page
+        ), $manage_credits_url ); // Use the stored URL
         wp_safe_redirect( $redirect_url );
         exit;
     }
@@ -219,7 +229,7 @@ function quiztech_handle_credit_purchase_submission() {
          $redirect_url = add_query_arg( array(
             'purchase_status' => 'error',
             'message' => urlencode( __( 'You do not have permission to purchase credits.', 'quiztech' ) )
-        ), get_permalink() );
+        ), $manage_credits_url );
         wp_safe_redirect( $redirect_url );
         exit;
     }
@@ -235,7 +245,7 @@ function quiztech_handle_credit_purchase_submission() {
         $redirect_url = add_query_arg( array(
             'purchase_status' => 'error',
             'message' => urlencode( __( 'Invalid credit package selected.', 'quiztech' ) )
-        ), get_permalink() );
+        ), $manage_credits_url );
         wp_safe_redirect( $redirect_url );
         exit;
     }
@@ -251,7 +261,7 @@ function quiztech_handle_credit_purchase_submission() {
             $redirect_url = add_query_arg( array(
                 'purchase_status' => 'error',
                 'message' => urlencode( $result->get_error_message() )
-            ), get_permalink() );
+            ), $manage_credits_url );
             wp_safe_redirect( $redirect_url );
             exit;
         }