Originally Posted by
cbn42
Couldn't they still do something akin to DCC if they also have an acquirer in your country?
For example, a company has websites in the US and Canada, and you use a US-issued card to buy something on the Canadian site priced in CAD. Upon realizing that you are using a US card, they convert the price to USD and have their US acquirer charge you. This isn't strictly DCC, because each merchant is billing in their own currency. Does Amex ban this as well? If not, it may be what some of these airlines are doing.
This was mentioned a while ago, but I found out today that this is exactly what Uber does if you take a ride in a country other than your card issuing country. I took an Uber ride home from PVG airport and while the Uber receipt showed I was supposed to be charged 350 RMB it said in fine print "this transaction will be processed in USD". It just showed up on my AmEx as being processed from the US at a very good (0.1% off mid-market) exchange rate, neatly side-stepping the FTF my Costco AmEx charges.