diff --git a/Services/Hncore.Pass.Vpn/Service/ProductOrderService.cs b/Services/Hncore.Pass.Vpn/Service/ProductOrderService.cs
index 1112518..4160629 100644
--- a/Services/Hncore.Pass.Vpn/Service/ProductOrderService.cs
+++ b/Services/Hncore.Pass.Vpn/Service/ProductOrderService.cs
@@ -141,7 +141,7 @@ FROM product_order where OrderState=20 or OrderState=90 or OrderState=40 or Orde
 
 	sum(
 	CASE OrderType	
-	WHEN 5 THEN PaymentAmount
+	WHEN 5 THEN RefundAmount
 	ELSE 0 END) 'RefundAmount'
 
 FROM product_order where {where} GROUP BY ProductName, PackageName order by ProductName, PackageName";