What is the ruling on the Islamic credit card (MasterCard) approved by the Sharia Supervisory Board, given that the bank charges a fixed fee of 30 riyals for withdrawing 1000 riyals from an ATM in a single transaction?

It is permissible to issue and use a credit card if it adheres to Shariah guidelines. The card issuer may take a fixed fee for issuing the card or for processing a cash withdrawal. This fee should be an actual charge commensurate with the services provided.