1. Three basic functions: credit consumption, cash advance, transfer settlement;

2. Real credit card: consume first, repay later;

Extended information:

Any individual with full civil capacity and legal income can present his or her valid identity document (including ID card, military officer ID card, police officer ID card, pass, and hometown return permit) recognized by the public security department. , passport, etc., the same below) apply for a personal master card from the card issuer.

An individual principal card applicant may apply for no more than three supplementary cards for his or her spouse and immediate family members with civil capacity; all amounts used in the supplementary cards will be credited to the principal card account, and the principal card holder will The person is responsible for repaying all amounts due on the supplementary card.

Reference materials: Baidu Encyclopedia-Bank of Communications Bailian OK Card