When cardholders are making purchases, they can directly swipe their cards at POS machines of merchants that support credit cards. You can also bind third-party applications, such as Alipay, WeChat, etc., to pay for consumption with a credit card.

The method of swiping a credit card is:

1. Give the credit card to the cashier of the merchant, and the cashier will take the card and swipe it on the POS machine.

2. The cardholder enters the credit card password.

3. POS will automatically print out the transaction voucher.

4. The cardholder signs the transaction voucher and the transaction is completed.

Credit cards, also called credit cards, are credit certificates issued by commercial banks or credit card companies to consumers with qualified credit. It takes the form of a card with the issuing bank's name, validity period, number, cardholder's name and other contents printed on the front, and a magnetic stripe and signature strip on the back. Consumers holding credit cards can shop or consume at specially designated commercial service departments, and then the bank will settle the accounts with merchants and cardholders. Cardholders can overdraft within the prescribed limit.

Credit cards stipulated in the relevant laws of our country ("Interpretation of the Standing Committee of the National People's Congress on Relevant Credit Card Regulations") refer to credit cards issued by commercial banks or other financial institutions with the functions of consumption payment, credit loans, transfer settlement , cash deposit and withdrawal and other full or partial functions of the electronic payment card. On December 1, 2017, the "English Translation and Writing Standards in the Public Service Field" was officially implemented, stipulating that the standard English name of credit cards is Credit Card.

Credit cards are divided into credit cards and quasi-credit cards. Credit cards refer to credit cards in which the cardholder has a certain credit limit and can consume within the credit limit and then repay; quasi-credit card It refers to a quasi-credit card in which the cardholder deposits a certain amount of reserve fund as required. When the reserve account balance is insufficient to pay, the cardholder can overdraw within the prescribed credit limit. The so-called credit card generally refers to a credit card only.

In most cases, citizens who have full capacity for civil conduct (citizens over 18 years old in mainland China) and have certain direct financial resources can apply for a credit card from the card issuing bank. Sometimes, legal persons can also be applicants.

Applicants for credit cards can be divided into units and individuals. Applicants should be institutions, enterprises and business units, foreign-funded enterprises and individual industrial and commercial households with independent legal person status in my country. Each unit applying for a credit card can receive a main card and multiple (5-10) supplementary cards as needed. To apply for a credit card, an individual must have a fixed occupation and a stable source of income, and provide a guarantee to the bank. The forms of guarantee include personal guarantee, unit guarantee and personal capital guarantee.

The application method is generally by filling in a credit card application form. The content of the application form generally includes the name of the applicant, basic information, economic status or source of income, guarantor and his/her basic information, etc. And submit certain copies of documents and certificates to the card issuing bank. After the customer fills in the application form truthfully according to the content, the customer must also submit the relevant credit certificate while submitting the completed application form. The application form is accompanied by a credit card use contract. The applicant authorizes the card-issuing bank or relevant departments to investigate its relevant information, and submits a statement of the authenticity of the information, the card-issuing bank's privacy protection policy, etc., and must have the applicant's signature.