I have a savings account at Chase bank. I have only an ATM card from them. When I used it in Europe, they charged me 3.5 percent of the amount I withdrew. Their explanation was that Mastercard was charging them 2.5 percent and they added one percent on their own. Again, I do NOT have a credit card, only a debit card. Here in Europe, Mastercard is going crazy charging local merchants ridiculously high rates for use of their card (and the local merchants are dropping the card as a result). Personally, I would stay away from anything Mastercard is involved it, including cash/debit cards.