Euro Account ATM Charges

Hi was wondering whether anyone can help. I have UK current account and Irish current account. For the UK account being sterling to euro. I would expect to see charges for an atm machine withdrawal. But used my Irish BOI euro account to make a withdrawal from a Santander atm. It wanted a 2 euro fee for the transaction. Why is this. It's a euro account. Can anyone tell me do all the spanish banks do this or are there banks that dont charge for withdrawal. Total rip off.