The handling method for frozen overpayments on Industrial Bank credit cards is as follows: Contact Industrial Bank customer service and provide relevant information.

1. Contact Industrial Bank customer service: Call the Industrial Bank customer service hotline (95561) or go to a bank branch and learn about the reasons for freezing and the unfreezing process with the help of customer service staff.

2. Provide relevant information: According to the bank's requirements, provide identification, bank card number, credit card number, income certificate, asset certificate and other relevant information so that the bank can verify the information and unfreeze it.