diff --git a/Services/Hncore.Pass.Vpn/Service/ProductOrderService.cs b/Services/Hncore.Pass.Vpn/Service/ProductOrderService.cs
index 66ba8dd..292da11 100644
--- a/Services/Hncore.Pass.Vpn/Service/ProductOrderService.cs
+++ b/Services/Hncore.Pass.Vpn/Service/ProductOrderService.cs
@@ -759,7 +759,7 @@ FROM product_order where {where}  GROUP BY Channel,ProductName order by Channel,
 
             var lastOrder = await GetLastOrderByAccount(account);
             //获取使用天数
-            var useDay = (int)Math.Ceiling((DateTime.Now - accountInfo.CreateTime).TotalDays);
+            var useDay = (int)Math.Ceiling((DateTime.Now - lastOrder.UpdateTime).TotalDays);
             var refundAmount = lastOrder.PaymentAmount / lastOrder.AccountCount - useDay * refundDayPrice.Value * accountInfo.ConnectCount;
             refundAmount = refundAmount <= 0 ? 0 : refundAmount;
             var order = new ProductOrderEntity()
@@ -786,7 +786,7 @@ FROM product_order where {where}  GROUP BY Channel,ProductName order by Channel,
                 Remark = "退款",
                 RefundReason = reason,
             };
-            var time = (accountInfo.EndTime - DateTime.Now).Value;
+            var time = (lastOrder.EndTime - DateTime.Now).Value;
             order.RefundRestTime = time.ToString(@"d\天hh\时mm\分");
 
             var againBuy = lastOrder.OrderType == OrderType.AgainBuy || lastOrder.OrderType == OrderType.AgainBuys;
@@ -841,11 +841,11 @@ FROM product_order where {where}  GROUP BY Channel,ProductName order by Channel,
             var refundDayPrice = userPrice == null ? product.RefundDayPrice : userPrice.RefundDayPrice;
 
             var lastOrder = await GetLastOrderByAccount(account);
-            var useDay = (int)Math.Ceiling((DateTime.Now - accountInfo.CreateTime).TotalDays);
+            var useDay = (int)Math.Ceiling((DateTime.Now - lastOrder.UpdateTime).TotalDays);
             var RefundAmount = lastOrder.PaymentAmount / lastOrder.AccountCount - useDay * refundDayPrice.Value * accountInfo.ConnectCount;
             RefundAmount = RefundAmount <= 0 ? 0 : RefundAmount;
 
-            var time = (accountInfo.EndTime - DateTime.Now).Value;
+            var time = (lastOrder.EndTime - DateTime.Now).Value;
             var RefundRestTime = time.ToString(@"d\天hh\时mm\分");
 
             var info = $"{accountInfo.Account}已使用{useDay}天，剩余{RefundRestTime}，可退金额{RefundAmount}元";