Originally Posted by
Majuki
It is possible, and it does happen. There's little one can do to avoid DCC in all cases except by using AmEx or a card denominated in the transaction currency, paying cash, or successfully filing a Reason Code 76 chargeback.
I can't speak for Coyote but percysmith tried to get the cashier at Greyhound to press cancel - and she did if I remember correctly - but to no avail. The damage had already been done.
I have seen the cashier call back the transaction for currency selection at Chungyo Department Store in Taichung, but in my experience the ex post facto DCC opt-out is rare.
I thought post facto DCC opt-out is rare too, but now I believe maybe this is the way to get the things right at Coyote and Greyhound Cafe.
The "cancel hitting" trick is definitely a way to go for the pre facto DCC opt-out, but I believe a lot of the terminals in HK can use post facto opt-out. Imagine in a restaurants, waiters all go to the same terminal to swipe cards, and there is no way everyone can wait for the last guy to come back with the marked slip, select the currency, then do their own swipings. Instead, the terminal should've been designed to be able to call back previous transactions when things are not so busy.
In situations like this, if you lay your eyes on the terminal, you would feel like you've already got into trouble. I sincerely feel that doing a post facto DCC opt-out can solve this, provided that the cashier has all the needed password or something to operate the terminal to do a "DCC opt-out" transaction.