我先点了P家3号尿布右侧Subscribe & Save，数量是2，
然后输入16位数字点apply的时候出现如下提示：
Important Message
We're sorry, but we didn't recognize the promotional claim code or gift
certificate/card code you entered. Perhaps you typed it incorrectly or you
are trying to use a code that's not valid for the items in your Shopping
Cart? (Some promotional claim codes can only be applied to items sold
directly by Amazon.com.)
后来点了sign me up
然后直接购买成功了，折扣只有30%，
继而发现只能取消今后的预定，今天这单不能取消，悲剧。
啥环节操作错误？请指导！
e****g 发帖数: 77
2
好像只能用1个unit.
n****a 发帖数: 2462
3
yj那个code输得不对
当时就应该重新输一遍，成功之后你会看到你的oop
确认后再点击sign me up
这单应该是不能取消了，amazon动作很快，下单几分钟后就改不了了
但你的yj还可以继续用在别的单上
