When using a credit card to enter or exit a bank for large amounts, the voucher must be the corresponding invoice or shopping receipt. Not limited to invoices, receipts are also acceptable. Just find a place to issue a receipt with your name and stamp it with the official seal. Bank regulations: Based on Party A's own risk management or the need to cooperate with regulatory agencies for supervision and verification, Party A may conduct inspections on Party B and its supplementary cardholders' relevant CITIC Bank credit card applications, transactions, disputes, large repayments, card usage and other abnormal situations. investigation.