The supplementary credit card can be swiped directly;

Currently, most credit cards issued by banks can apply for the corresponding supplementary card (or supplementary card). Generally speaking, the cardholders of the secondary card can only be the parents, spouse, children, etc. of the primary cardholder. Operations such as card opening and password setting of the secondary card are independent of the primary card, but can be handled by the primary card holder. The annual fee is generally half of the primary card.

According to regulations, the main card and the supplementary card use the same account, and all transaction details of the supplementary card are listed on the statement of the main card, so that the main cardholder can easily understand the usage of the supplementary card. . Transactions such as supplementary card consumption and cash withdrawals and corresponding handling fees are charged to the main card account.

Generally speaking, the secondary card and the primary card enjoy the same credit limit. The primary cardholder can also set a credit limit for the secondary card that is lower than that of the primary card. If you want to increase the usage limit of the supplementary card, the cardholder can deposit a certain amount of funds in the main card in advance (the funds do not accrue interest) and just call the bank. At this time, the limit of the supplementary card is the original maximum limit plus the deposited funds.