Originally Posted by
Sintaku
That is weird. I haven't used card in Spain in a while (haven't been there in 4 years). I do remember being a moron back in 2009 and allowing the Spanish bank to charge me in GBP for a Euro withdrawal, I bet I ended up getting a really bad exchange rate.
I saw it quite a bit back in January (on a UK issued Mastercard). I was in Spain again last week and only used my new Visa credit card in a Mercadona supermarket. DCC offered after contactless each time.
Usual scenario: two currencies offered on touch screen, GBP in green, EUR in red. Choose EUR, another screen where you have to confirm. Again, green for DCC, red for no DCC.
Fortunately, you are in control of the machine during the whole transaction in Mercadona, since it is fixed to the checkout. The worrying times are when a portable machine is being used.