I am sure you can dispute the charges (but you do have to follow the bank's procedures). This happened to me. I got the last 2 charges back, but not the first one since more than 6 months had passed. I only noticed the most recent one, but went back over my older statements and saw there were more (someone in dallas was using my san antonio atm card, which was in my posession, to pay their DFW water bills!).

