Do you know the supplementary card? In fact, the secondary card of the main card can be applied at the same time. When applying for a credit card, the cardholder only needs to check the supplementary card column. What's the difference between a primary card and a secondary card? Bian Xiao will tell you, if you are interested, you can also have a look.

1. Annual fee: the annual fee of the supplementary card is lower than that of the main card, which is generally half of that of the main card.

2. Authority: The main cardholder can apply for multiple supplementary cards and can change the supplementary cardholders, but the supplementary cardholders cannot change the main cardholder. In other words, the supplementary cardholder is passive.

3. Limit: the overdraft limit of the secondary card cannot exceed that of the primary card.

4. Repayment method: There is no need to repay the secondary card after swiping the card, and its consumption is completely repaid by the main card holder.

The connection between the main card and the supplementary card:

1, supplementary cards, like the main card, can be swiped several times a year to avoid the annual fee for the following year.

2. The secondary card shares the credit line with the primary card.

3. The points obtained from the consumption of the secondary card can be merged with the points of the main card, but only the main card can exchange points.