Generally, when a credit card expires and the credit card center sends a new card directly, there is no need to change the credit card number. The new card number is the same as the old card.

But there are two places that will change, one is the validity period of the card, and the other is the CVV2 code on the back, which is the security code.

What is a credit card?

Credit card (English: credit card), also called credit card. It is a non-cash transaction payment method and a simple credit service.

A credit card is generally a special carrier plastic card with consumer credit that is 85.60 mm long, 53.98 mm wide, and 1 mm thick. It is issued by the bank to individuals and organizations, and can be used to shop, consume, and deposit and withdraw cash from the bank. It is in the form of a card with the name of the issuing bank, validity period, number, cardholder name, etc. printed on the front and a magnetic card on the back. strip, signature strip.

Credit cards are issued to cardholders by banks or credit card companies based on the user's creditworthiness and financial resources. The cardholder does not need to pay cash when making purchases with the credit card, and repayment will be made on the billing date (English: billing date) .

On April 15, 2016, the central bank issued the "Notice of the People's Bank of China on Matters Related to Credit Card Business", canceling late payment fees on credit cards, introducing liquidated damages, and prohibiting over-limit fees. The new regulations were implemented in January 2017 It will be officially implemented on the 1st.

The debit card is an ordinary savings card. The account attribute is a current deposit account and can be used for consumption, ATM deposits and withdrawals, etc.; a credit card can be used for consumption, ATM deposits and withdrawals, etc. The biggest advantage is that it can Overdraft (with a certain credit limit)

Generally, bank cards are divided into two types: credit cards and debit cards.

Credit cards are divided into credit cards and quasi-credit cards. A credit card refers to a credit card in which the card-issuing bank gives the cardholder a certain credit limit, and the cardholder can consume within the credit limit first and repay later. A quasi-credit card refers to a credit card in which the cardholder first deposits a certain amount of reserve fund as required by the bank. When the reserve fund is insufficient to pay, the cardholder can overdraw within the credit limit specified by the card-issuing bank.

Debit cards are divided into transfer cards, special cards and stored-value cards according to different functions. Debit cards cannot be overdrawn. Debit cards have the functions of transferring money, depositing and withdrawing cash, and spending money. A special card is a debit card used in a specific area and for special purposes (referring to purposes other than department stores, restaurants, and entertainment industries). It has the functions of transferring funds, depositing and withdrawing cash. A stored-value card is a prepaid wallet-style debit card in which the bank transfers funds to the card for storage at the request of the cardholder and directly deducts funds from the card during transactions.