Master card and supplementary card are the classification of credit cards

Only credit cards have master cards and supplementary cards.

in the form of applying for a credit card, it is generally written whether to apply for a supplementary card, and both can be applied on the same form. You can choose whether to open the supplementary card or not.

the master card is the card that the account holder of the credit card applies for, that is, using his own card;

supplementary cards are applied by the principal cardholder for their relatives, such as parents and children. The bills used by them are paid by the principal cardholder, and the consumers of supplementary cards can also see them.

1. Card opening

Since the credit card application is approved and the card is sent by post, there is no guarantee that the recipient is the applicant. In order to protect the applicant and the bank from theft, the credit card has a card opening program before it is officially opened. Card opening is mainly through telephone or internet, etc., to check the relevant personal information provided at the time of application, and complete the card opening procedure after it meets the requirements. At this time, the applicant becomes the card holder, and can officially start using it after signing on the back of the card. After a credit card is opened, it is generally necessary to set a password for the card.

after accepting a credit card, a credit card merchant or bank should review the validity of the credit card and the identity of the cardholder.

2. Identify

at least the following information on the card face of the credit card:

Front: the name and logo of the issuing bank, credit card type (organization logo) and holographic anti-counterfeiting mark, card number, English or pinyin name, activation date (generally calculated to the month) and effective date (generally calculated to the month). The newly issued card has a chip attached to the front, and the chip account and the card magnetic stripe account are two relatively independent.

back: the magnetic stripe of the card, the cardholder's signature column (which must be signed after activation), the service hotline, the last four digits of the card number or all the card numbers (to prevent fraudulent use), and the credit card security code (the three digits immediately after the last four digits on the signature column on the back of the credit card are used for credit card activation, password management, TV, telephone and online transactions, etc.).

3. authorize

the merchant and the bank to confirm the validity of the credit card and contact the bank according to the contract signed with the issuing bank, and

request authorization. Authorization is the amount that can be used to further prove the identity of the cardholder. Authorization is generally carried out when the use amount stipulated in the contract is exceeded.

after receiving the authorization notice, the card-issuing bank will issue an authorization instruction according to the balance of the cardholder's deposit account and the agreement of the bank to allow overdraft, and reply whether to agree to the transaction.

4. The use of

credit cards is usually limited to the cardholder's own use, and lending them to others is generally a violation of the use contract.

5. card cancellation

before the credit card is cancelled, the account balance must be cleared, and the card cancellation process should be completed within 45 days after the application is made.

Reference: Credit Card-Baidu Encyclopedia