For example, users apply for MasterCard, but in order to facilitate users to spend in China, they will also send a UnionPay credit card to users. Or the user directly applies for a set of cards, then you can get two credit cards of different card organizations at one time.
At present, in order to facilitate the repayment of credit card customers and expand the depositor market, major banks usually attach a savings card when users send credit cards, and users can repay according to their own needs, that is, the credit card and savings card are linked accounts, that is, automatic repayment. That is, on the repayment date, if the user forgets to return the credit card, and the savings card just has enough funds, the bank will automatically deduct the money from the savings card and return the credit card. Although convenient, it also has disadvantages. For example, associated account repayment only supports full repayment. If you want to pay the minimum repayment amount for objective reasons, it is still very embarrassing to be repaid in full.