Originally Posted by
Sintaku
That is nearly always the answer or it takes forever for them to figure out how to do it. One time it took me 30 minutes to get it fixed, and they refunded me in local currency and rebilled with DCC so I was out 2x DCC. I just do chargebacks now and write on the signed receipt that I wanted to pay with local currency then take a photo.
Also, if it seems to be the owner knew what was up, I wouldn't hesitate to leave the appropriate feedback on TripAdvisor or other similar review sites.
It is most certainly possible to void a sale on a transaction since you're not going to tell me if the person mistakenly keyed in €250 instead of €150 that it would be impossible to reverse the charge.