Originally Posted by
zyxlsy
That makes very good sense, I totally agree.
Also, are you sure that Discover cards don't have DCC problems? I was researching it and some DCC systems do work on Discover cards. I am pretty sure AMEX doesn't have the problem since I've done using that in China and it was problem-free.
That, unfortunately I am not 100% sure.
You may also run in a strange acceptance issue in China with Discover cards is that some cashiers refuse to even try to swipe the card on the grounds that there is no UnionPay logo printed on the card, even though if they actually try it it will go through.
And you are right, AMEX doesn't do DCC.