请大家耐心看，谢谢：
上星期四卖了一个自用的IPAD，一个卖家是最高BIDDER，我上面标的是用UPS，但在星
期五早上的时候，因刚好打印不出UPS，就用了priority mail, 低于4磅，用了$13.8f
运费，再加INSURANCE$6。然后发给买家MESSAGE，解释了为什么用priority mail。结
果他回信说：
Actually, shipping by USPS does create a problem. I am currently traveling
and my USPS mail is forwarded. My forwarding company is going to charge me
extra to forward the iPad to me. I specifically picked this auction because
it was shipping by UPS and i have someone picking up my UPS packages for me.
Is there any way to hold the shipping and send by UPS? If it needs to be
shipped by USPS, I need to give you a different address.
但是邮件已经发出去了一天了，我就问多少钱FORWARD这个MAIL，他说他要先问，然后
第三天他回信说：
My mail forwarding company just e-mailed me back. They said the cost to
forward would be $18.29 for Fed-Ex ground (USPS would be $22.65).
我有一个疑问，为什么这个地址如果用UPS寄可以让他的朋友PICK UP，但是同一个地址
USPS却会让forward company收呢？