Ahhh so much info I have brain freeze lol
I don't actually have a credit card never needed one and not sure they would give me one if I'm not working for a year.
I'll have a look at the revolut card that seems an idea and I'm going to go in to my local Santander branch tomorrow and ask them for advice on having an account with them.
I tend to use my debit card for fuel gas supermarket shops etc but cash for smaller purchases
Doing that abroad I would expect to have bank charges added either by my own bank or that of the trader, or both.