2018.8.23 update: 卖家已善意回应，全额退款；帐号只能后续等hilton如何处理
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以下分享惨痛经验...
之前在板上跟上站次数好几千的卖家，买了13万点HH，结果几天前突然帐号被锁住不能
登入，打去问客服说帐号被close，在跟Fraud department来回N封信后(大约两天一封)
终于有人愿意主动告知，而不是罐头信。
We received notification that the points transferred into your Hilton Honors
account were not authorized by the sender. As a result, the unauthorized
points were adjusted and future reservations were cancelled.
In order to reinstate your account, the original member you received points
from would need to contact us through the preferred email address on file and
confirm the transferred points were authorized.
Please note, without an authenticated email from the original member your
account will remain closed.
看起来只是被误认为偷点数，需要sender寄信给他们才会解开，我那时心想还不简单，
但是在对方寄信给hilton之后，还是帐号被锁，继续追问的结果(又过了3~5天)，结果是
卖家点数来源被系统认定有问题
Thank you for your email.
Upon further investigation, your friend's account was also closed for
fraudulent activity so any emails from your friend are invalid. The points
transferred to your account were stolen from other accounts. All accounts
involved in the transfer of stolen points are closed accordingly.
目前等待卖家回复中，不知道版上有没有其他受害者，希望大家以后买点要小心
我是觉得这真的很难预防，钞票还有验钞技术，点数要怎么分辨真伪@@ 有需要点数的人
可能还是透过官方渠道吧
ps. 另外有prepaid stay，因为封号hilton也把订房纪录取消，写信问饭店GM，回说
As the reservation is a prepaid nonrefundable reservation I am afraid we
cannot refund the balance. The reservation is still in the system, would you
like me to cancel it or possibly move the dates to a more suitable date?
这下罗生门了，不知道大家有没有相关经验或建议?
谢谢!