are you guys disputing these transactions? I had a forced DCC at my hotel in Switzerland. Here is what happened. I was asked to pay CHF 7.50 for a city tax (I had already prepaid for my hotel). The machine gives me the usual CHF or USD options. I choose CHF. However when the receipt prints out it said I accepted DCC and it has applied a 4% markup. I complain to the guy and he says from their side it's charged only CHF 7.50 but that isn't what the receipt says and my posted charge is USD 8.83 which in fact reflects a 4% markup from the official exchange rate. They refuse to correct the error telling me there isn't any error at all and the rate I got is from my bank and they insist that they charged the CHF and nothing more which is of course just pure lies.

So, the card is a Chase United Mileage Explorer... can I call Chase and just dispute the entire transaction telling them that I infact had declined the DCC and the machine has ignored it? It's only 43 cents difference but why should I pay what I don't owe?