<prompt> Human: I just received notice that a check I sent in to pay my gas bill was written over. It appears the person wrote the check out to herself and cashed it for 900 instead of the original 100. As a college student working part-time this is particularly devastating as I have one payment remaining for university that I now cannot make on time.Any and all advice is welcome and encouraged. Thanks for your help.Edit: Police report filed. Talked to bank and they cannot guarantee I will get reimbursed, but told me it is likely. Looks like this will take a while to resolve.  <response>: If the bank cashed a fraudulent check, they should refund you, and they usually will without much fuss. Open a police report, and then bring it to your bank and ask for a refund. 