The repayment date of the credit card of Shanghai Pudong Development Bank is related to the billing date, and the 20th day after the billing date is the repayment date. For example, if the bookkeeping date is 1, then the repayment date is 21; The billing date is 8 days and the repayment date is 28 days.
If you want to modify the repayment date, you only need to modify the bill date, and the date of the repayment date will change accordingly. The bill date can only be modified once a year.