我有一些ebay GC,半个多月一直是 We can't apply this code to your order. 如果是输入错误,或者balance为零,分别显示这样: This coupon code isn't valid. Try entering it again. There's no balance left on this coupon code. 最近又让我用了$100,然后又是We can't apply this code to your order. 这破GC太麻烦了。