When applying for an ICBC credit card sub-card, you are prompted to fill in the joint unit member number. This means that if there is an Air China point card or an Air China joint unit point card, it can be filled in, and the bank can retain the original points and other rights. If not, it is not necessary to fill it in.

The subsidiary card of ICBC refers to the card attached to the main card, also known as the subsidiary card. The secondary card is equivalent to the backup card of the main card, and it carries out business such as withdrawal and consumption within the scope authorized by the main card. The function is equivalent to the main card, which is convenient for consumers (such as immediate family members) living in different places to use.

Extended data:

Card characteristics

1. Fully realize paperless trading.

Most of the bills and documents used before were replaced by electronic checks, electronic bills of exchange and electronic receipts; The original paper money was replaced by electronic money, that is, electronic cash, electronic wallet and electronic credit card; The original paper document is sent by mail through the data communication network.

2. The service is convenient, fast, efficient and reliable.

Through online banking, users can enjoy convenient, fast, efficient and reliable all-round services. You can use the online banking service whenever and wherever you need it.

Baidu Encyclopedia-ICBC Credit Card