diff --git a/member/models/forms/ProductOrderSubmitForm.php b/member/models/forms/ProductOrderSubmitForm.php
index 7f3e9a7..6247b4b 100644
--- a/member/models/forms/ProductOrderSubmitForm.php
+++ b/member/models/forms/ProductOrderSubmitForm.php
@@ -131,7 +131,7 @@ class ProductOrderSubmitForm extends BaseModel
         $paymentProductOrder->amount   = $productOrder['total_pay_price'];
         if ($productOrder->prescription->category?? 1 === 2) {
             if ($productOrder->delivery_method === 0) {
-                $paymentProductOrder->amount   = $productOrder['trans_expenses'];
+                $total_fee   = $productOrder['trans_expenses'];
             }
         }