Where do you block it? I don’t see an obvious option at any of my banks or that article.
It is usually an option in your bank's app. It depends on the bank though, obviously. If it's not there, you have to be vigilant while using your card (always select the local currency when given the option).
It is usually an option in your bank's app. It depends on the bank though, obviously. If it's not there, you have to be vigilant while using your card (always select the local currency when given the option).