refund

application/library/Order/OrderConfirmUtil.php

@@ -1238,7 +1238,7 @@ class OrderConfirmUtil {
         $storeGoodsList['storeCouponPrice'] = $storeCouponPrice;
         $reliefAmount = $cartService->getOneCouponReliefAmount($coupon,$storeGoodsList);
         if($reliefAmount&&$reliefAmount>\Our\ApiConst::zero){
-            $totalPrice = $totalPrice-$reliefAmount;
+            $totalPrice = ($reliefAmount > $totalPrice)? 0 : ($totalPrice-$reliefAmount);
         }
         return $totalPrice;
     }