今天头晕了- extend warrenty

打电话接了，要卖extend warranty 给我，头晕了。最后付了几百deposit using credit card.  放下电话作了一些research, 口中不安。他给的电话号码和公司名字有微小差别，况且10-15 分种我收到confirmation email 也没收到。马上打电话回去要cancel (人下班了）打电话去credit card company 要求换卡，并且要block 几百charge. 换卡成功，另告知几百charge is pending, they can not do anything on pending ... Friday pending will be charge on credit card and then I can request to block charge.

 

准备明天再打电话cancel, 然后后天call credit card company to block. 

没事找事。各位大侠看看我有无中招，还有什么要做的。