<prompt> Human: Ok so heres the story. My my girlfriend and I went out to deposit some of her money at an ATM at her local Wells Fargo. When we arrived we had about 40 bills total they were crumbled and worn so when we put all 40 in they ATM rejected it. We tried again with a single 20, it worked. Then we tried with the rest the money it was about 550 total. Next thing we knew the ATM had eaten up all the cash and not recognized a deposit of any sort. The ATM I just taken 550 from us. So we called Wells Fargo to set up a claim to try and get our money back. Within 10 days they refunded us the approximate amount we lost. This was over a month ago, today Wells Fargo sent us a letter telling us that as of the 18th of September they would be taking 513 back out of our account, because their investigation concluded that we had only deposited 20 in the first place. This is completely untrue, and now my girlfriend has a negative balance on her account. She is trying to set up another claim right now, but is there anything we can do to resolve this? Thank you guys.Edit 1: Just wanted to say thank you for all the responses. My SO and I decided to file another claim. Once this claim is finished, I suggested she should leave WF and join a credit union or get a checking card. She is in college, and doesnt have enough money to maintain a minimum balance.  <response>: Okay, this is how this works: When the ATMs deposit trays are full of cash, the ATM pings the local main vault. An armored truck is dispatched to empty the trays. The cash is counted at the main vault; the cash total is compared to the ATMs tally. If its off, a real human person combs through the transactions, trying to find out where the cash goes. If the ATM is over by, say 100, and there is one claim from one person for 100, problem is solved. This happens more than you think. If, on the other hand, the ATM is over by 796, and 6 people make claims for 40, 312, 67, 200, 200, 20, there is really no way to know where the money is supposed to go. Thats the issue with cash and the reason you shouldnt pay for anything that should be traceable with it. Your situation absolutely sucks and you should definitely get another claim started. However, avoid using ATMs for cash deposits and move your accounts to another bank. 