Thank you for telling me what it's called!

On the positive side, it seems that Wise must block it because I never see the DCC "choice" when using a Wise card.

As a negative point, I've noticed that AirBnB, which used to use reasonable conversion rates, has just recently started to use exorbitant currency conversion and not allow you to pay in the local currency of the country you're traveling to (so you can let your own credit card do the conversion at a lower rate). I.e., if you try to book a property in Brazil in BRL (literally clicking on the price to pay in BRL), the charge will nevertheless go through in USD (or whatever currency is your own) with AirBnb doing the conversion at the rate they choose.

Where do you block it? I don’t see an obvious option at any of my banks or that article.