i could ask this from my bank of course, but heck I figured why not as on GOG forums instead because you know everything better.

Anyway, I used to have separate debit (MasterCard) and credit (VISA) cards from my bank. Recently they said they will be replaced by one combined debit/credit card, which they did.

Earlier on GOG.com I could decide if I pay with my debit or credit card, but is that possibility now gone? If I use the card, apparently it now always charges the credit card. Or is this something i have to agree with the bank, ie. which is charged by default, if the service doesn't let me pick?

I'd usually rather pay with the debit card because there I seem to see more instantly if I was charged (e.g. if the payment process fails for some reason), and also so that I don't buy more than I can really afford to. :) Plus, my bank takes a small monthly charge if I use the credit card (not much, but enough to buy one cheap GOG game discounted).

Earlier the bank offered debit MasterCard and credit VISA (two separate cards). Now they informed that the VISA credit card will be obsolete and both debit and credit will be MasterCard, which came as a combined, one card.

Earlier I could buy e.g. from GOG with either debit or credit card (using the corresponding card), but now as I have only one debit/credit card, this option is apparently gone. If I pay with it on grocery stores etc., there the machines always ask whether I want to use debit or credit.

As for the extra charges, at least I didn't see any extra charges for using the debit for buying e.g. from GOG, but then I don't know if they are embedded to some other costs, like worse currency exchange. When I use the credit card, then when I pay bank once per month, there's some extra handling charge added to it. Not much, a couple of euros I think, it seems to be triggered if I have used the card at all during the last month. If I don't use the credit card => I don't need to pay anything => no extra handling charge either.

I guess I need to ask the bank for clarification. Oh well, at least I can buy from GOG with the credit card, I just liked it how I could instantly see whether the transaction went through with the debit card. With the credit card, there's some sort of delay before I can see it.

Marking your reply as a solution. I was mostly thinking is there some way online to tell to use the debit (or credit) specifically with these combined cards. First time I'm using such, earlier I've always had debit and credit cards as separate cards.

Oh right, I did figure it out by myself at some point.

You see, the debit card has its very own number and CVV code, and at least in my case they are printed out on the other side of the card (with a smaller font at some corner of the card).

So yeah it is there, just not as visible as the (main) credit card number/CVV.

Well, Master of the Universe, you must get a lot of posts to reply too and the backlog is five years?!!???:)