1. First of all, when you want to refund the interest on your credit card, you need to know whether your situation meets the requirements. For example, if a breach of contract is caused by force majeure, compound interest and related service management fees will be charged for the unpaid overdraft amount, and interest can be refunded.

2. Call the credit card center to apply for a refund of the credit card fine. If the bank disagrees, it can call or complain to the CBRC. Overcharged interest can of course be refunded. Excess interest, liquidated damages and compensation exceeding the red line cannot be supported by law, and can be returned through complaints.

3. To sum up, the liquidated damages caused by the issuer's failure to perform its obligations or the bank's fault can also be appealed, including the liquidated damages caused by special circumstances. For example: accidents, theft, etc. Unreasonable expenses can be refunded.