Get with the bank that owns the atm or take them to your bank. There is no reason for you to take care of this directly. As a former banker, I recall that there was a process that went through the Bank’s loss prevention department.If you take them to the bank who owned the atm You could get your money back.If you take them to your own bank, file an ATM dispute as the currency was fake. The great thing about the ATM network is that they provide consumer protection.The bank will have no problem taking care of the bills for you and the plus side is that you’re likely going to get the money replaced!One last note is that currency that is fake is best for a consumer to never mail themselves as you need to get it to a controlled environment. The banks seal the bill in a specific bag that is tamper evident and begins a full chain of custody to help preserve micro-evidence as well as provide proof that it was not attempting to be used.