The tips for refunding credit card interest penalty are as follows:

1. First call the manual customer service of the credit card center and ask for an interest refund. The customer service will definitely explain how the interest is deducted. It is best to If you can find loopholes in their service, such as no clear text message reminder about penalty interest, etc. If you want to refund the interest and liquidated damages, the customer service will say that you need to apply to the above.

2. After a few hours or the next day, each bank is different. Customer service will call back and explain that their interest deduction is reasonable. If you continue to request an interest refund, customer service will say to apply again.

3. If you repeat this several times, the customer service will agree to refund the interest, but it is definitely not possible to refund the entire amount, only part of it.

The bank will not refund liquidated damages and default interest arising from credit card defaults. However, if the user can prove that the overdue credit card is not his/her responsibility and the overdue responsibility should be borne by the bank, then the overdue interest and overdue penalty can be refunded. Therefore, users need to submit relevant materials to prove that the reason for the overdue payment has nothing to do with them. If the bank recognizes the user's reasons, it will refund the liquidated damages and overdue interest. In most cases, overdue payments are caused by the users themselves, so the probability of refunding liquidated damages and interest is very small.

Causes for liquidated damages:

1. Credit card expiration

Credit cards have a final repayment date, and some have a grace period of 1 to 3 days. If there is no grace period, the loan must be repaid before the final repayment date. If there is a grace period, the loan must be paid off no later than the last day. Otherwise, if the loan is not repaid on time, it will be overdue.

For cardholders who cannot repay the principal and interest of the loan on time, the bank will take punitive measures, that is, charging liquidated damages, which is divided into 5% of the outstanding principal and interest of the loan. The upper and lower limits are different for different banks. For example, the minimum liquidated penalty of China Construction Bank is 5 yuan, the minimum is 1 US dollar or 1 euro, and the currency is the same as the minimum repayment amount.

2. Early repayment in installments

Most installments are for cash installments or special quota installments, because there is an agreed repayment period when handling the application. Although the early repayment is not overdue, It can also be regarded as liquidated damages, which allows the bank to reduce the installment fees it expects to charge. In order not to lose money, it will reduce losses by charging liquidated damages.

Different from overdue payments, liquidated damages for installment repayment are charged in proportion to the outstanding principal, generally 3%, and are included in the latest bill amount.