If you have any questions, the bank will go to the mobile company to help you retrieve the original signature document when you swiped the card to verify whether it was your own signature. However, you will be charged a fee for the reconciliation. Yes, the specific amount varies from bank to bank.

If you find that it is not your signature and insist on checking it clearly, the bank can report the case and ask the police to retrieve the original video of the mobile business hall. In this way, you can find out who originally held your credit card for consumption.

Or you can check those with less than 500 that add up to exactly 1,000 yuan.