I got dicked by card fraud once, to the tune of 2 grand!
The bank delivered the card to the wrong address, and as that house was now being squatted in, they managed to spunk the cash away inside four days. Whilst I was in Dublin.
Anyway, If you go to the bank with some kind of proof it wasn't you (In my case, there was a transaction by debit card on Botanic Avenue, Belfast, and a cashpoint withdrawal from an ATM on Grafton street, Dublin separated by two minutes!!) , or you kick up enough stink, they will always refund. That's why banks kick up such a wild stink about card fraud. It doesn't cost you. It costs them. Especially if they're a bunch of incompetent chancers who can't follow simple bloody instructions.