The supplementary credit card has functions such as overdraft consumption, cash withdrawal, and transfer. The limit of the supplementary credit card is set by the primary cardholder, so most of the time the supplementary card is used for overdraft consumption. Credit cards refer to various media that record cardholder account information, have bank credit lines and overdraft functions, and provide cardholders with related banking services.

Introduction to credit cards

Credit cards are divided into credit cards and quasi-credit cards. A credit card means that the cardholder has a certain credit limit and can make purchases within the credit limit. Credit card for later repayment.

A quasi-credit card refers to a quasi-credit card in which the cardholder deposits a certain amount of reserve as required. When the reserve account balance is insufficient to pay, the card can be overdrawn within the specified credit limit.

A credit card is an electronic payment card issued by a commercial bank or other financial institution that has all or part of the functions of consumer payment, credit loan, transfer settlement, cash deposit and withdrawal, etc. There is no need to pay cash when making a purchase, and the bill is pending. Make repayments on time.