<prompt> Human: About a month ago, I started noticing payments being made to my credit card that I did not make. I called up my CC company and they confirmed that it was a payment by check and for my account. I got nervous and asked them to cancel the account number and send me a new card. Now, a month later and with the new card and account number I am still get payments. I have stopped using the card, and have set aside the money needed to pay it off in case they finally figure out their mistake. I havent been using the card, and now the balance is in the negatives, as someone continues to mail in money. Sometimes the money is for rounded numbers, but last week they sent in a payment for exactly as much as was left on the card. Yesterday, another 500 check was deposited. Im not sure what this is, or what to do. I know its not a benefactor, as nobody I know has money like this, and nobody would know that I have a credit card, let alone what company it was with. At this point I want to cancel the card completely... but has anyone had any experience with this? What should I do?  <response>: Usually At least for my bank and credit card when a check is used for payment or deposit then an image is saved of the check and can be viewed on the online banking service. That should give you all sorts of information about who is paying your bills. 