The bill cannot be modified under the following circumstances:
1, the date of bill modification has been recorded in a natural year;
2. The account is currently overdue or overspent;
3. You have an undistributed installment transaction;
4. No bills have been issued since the last bill modification;
5. The initial bill has not been issued, but the transaction has been recorded;
6. In the case of multiple accounts, if there is no effective bookkeeping date range between accounts, the bookkeeping date cannot be modified;
7. The billing date of car installment card, parking installment card, owner's music, family music, new electronic credit card and official card account cannot be modified.