The primary card must be used to redeem National Life Credit Card points.

Merchants with points on their primary and secondary credit cards can accumulate points.

However, the points of the supplementary card are not calculated separately, but are merged into the account of the main card. That is to say, the points of the supplementary card are together with the main card. The points rules are the same as those of the main card. At the same time, you can quickly accumulate points by swiping your card for consumption. When the points accumulate to a certain level, you can go to the credit card point mall to redeem gifts, but only the main cardholder has the right to redeem