(1) Things happen with technology, ATMs in particular. And in general (just as with an erroneous charge to your credit card) it might take a few days to strai

(1) Things happen with technology, ATMs in particular. And in general (just as with an erroneous charge to your credit card) it might take a few days to straighten out. In this case, it might help to employ Occam's razor, and assume that you didn't stumble onto a criminal gang inside of Citi, out to randomly fleece customers making attempted cash deposits; rather, just another case of technology (inevitably) going wrong, and the people at the branch not being trained in how to respond sensitively to the consequences. (2) Like the other poster says, it's a good idea to be circumspect (at least) about ATM deposits. If you must make a cash deposit at an ATM in the future, consider filming the whole transaction, taking care to make sure that your ATM card is clearly identifiable, along with the amounts and quantities of the bills (and perhaps a few of their serial numbers). That would give you much more leverage should you find yourself in the position of needing to force one of these banks to investigate the mishap properly.