A bank in Albany, NY (Charter One) did something similar to me. Someone stole my debit card number and bought something off of E-bay, causing my account to go to a negative balance (overdraft).

They kept charging me an overdraft fee of 34 dollars every three days, and at a time when I was overseas and was not able to make a deposit to get the account back above a negative balance (and I didn't even know about this at first, was a bad surprise).

I ended up owing over $700 in overdraft fees, which were reversed after a lot of BS I had to go thru to prove that the debit charge that caused all of this was fraudulent! Fucking banks ...