1. First, confirm that the credit card has been completely settled, and there is no overdue or arrears. You can check bills and repayment records through online banking or mobile banking.
2. Secondly, contact the customer service phone number of the issuing bank and transfer to manual customer service, explain the reason and urgency of settlement to the customer service, and ask the customer service to issue a settlement certificate and provide the delivery address.
3. Finally, if the customer service refuses or prevaricates to issue the settlement voucher, you can directly find the bank leader or the issuing bank's complaint department, explain the situation and appeal, and provide the credit card number and ID number.