Credit card consumption process: POS credit card swiping is the most common way to use credit cards and is a way to swipe cards online. When swiping a card, the operator must first check the validity period of the credit card and the cardholder's last name. Then select the corresponding POS machine according to the card issuing bank and the currency to be paid, and swipe the magnetic stripe of the magnetic stripe credit card on the POS machine, or insert the chip credit card into the card slot, connect with a payment gateway such as a bank, and enter the corresponding amount. After the remote payment gateway receives the information, the POS will print a credit card payment receipt (at least two copies). The cardholder should sign the receipt after verifying that the information on the payment receipt is correct. After the operator checks the signature on the receipt and the signature on the back of the credit card (including full name and basic handwriting), the credit card and credit card payment receipt are sent to the cardholder. At this point, the credit card swiping procedure on the POS machine is completed. Swiping an RFID card on an RFID machine is a new way of using credit cards and a way of networking. When picking up a card, the operator should first check the validity period of the credit card and the cardholder's surname. Then select the corresponding card punching machine according to the card issuing bank and the currency type to be paid, enter the corresponding amount, and place the credit card flatly no more than 10cm above the sensor. After the RFID machine senses the credit card, it will emit a signal sound and then continue to run the program. After the remote payment gateway receives the information, the printer (if connected) will print a receipt for card payment, but unlike the previous method, the cardholder does not need to sign, making it faster and more convenient than the previous method. At this point, the punch-in sensor program on the RFID machine is completed. Manual page pressing Manual page pressing is generally used when there is no POS machine or no Internet connection. Pressing operations must have a pressure-sensitive copy of the "Direct Purchase Order" (at least two copies) and a telephone. The inspection before placing an order is the same as that of a POS machine. Then, the operator's credit card is printed on the purchase order with card number, name, etc. Add money to the credit card on the banknote press and write information such as the amount and date. Then, the operator calls the authorization hotline of the acquiring bank, reports the card information and applies for authorization. The authorization code obtained is written on the purchase form, and the cardholder signs it after confirming it is correct. After the operator checks the signature, he hands a copy of the credit card and purchase order to the cardholder, and the manual order pressing process is completed. Authorization calls are usually made immediately. In some areas where communication is poor or credit discipline is poor, merchants may encounter situations where they ship the goods immediately after signing the card to complete the transaction. The authorization will be completed in the future, but the merchant has the risk of credit card fraud (if the customer pays with an invalid card, it cannot be discovered immediately without applying for an authorization code immediately). Online payment From the perspective of the cardholder, online payment is considered to be the riskiest credit card risk One of the payment methods, because malicious actors may use phishing, eavesdropping network information, impersonating payment gateways, etc. to steal user information. When paying online, you need to enter the card number, credit card validity period, VisaCVV2/MasterCardCVC2/UnionPay CVN2 number next to the signature column on the back of the card, online transaction password, and sometimes your name, verification code randomly generated on the web page, etc. After completing the input, click Submit to complete the online payment. With the development of the Internet, the security of online payment and credit card payment has gradually improved, which has also inflated the trend of online consumption. TV and phone transactions are similar to online payments and require card number, validity period, VisaCVV2 code/MasterCard CVC2/UnionPay CVN2 and other information. Pre-authorization Pre-authorization is generally used to pay a deposit, that is, to freeze a portion of the available credit cards as a deposit. The pre-authorization process is similar to manual order pressing, but the content of the call is to ask for pre-authorization of the corresponding amount. It is not a request for money or order pressing, but is just to issue a deposit receipt certificate. Generally, pre-authorization will be canceled by the merchant during checkout. If the merchant forgets to cancel, you can call the merchant to request cancellation, but you cannot call the authorized agency to cancel it yourself. Or, wait for the bank to automatically cancel the pre-authorization (generally ranging from 7 to 30 days). Credit card application: In most cases, citizens with full capacity for civil conduct (citizens over 18 years old in Mainland China) have certain direct financial resources. You 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 agencies, enterprises and institutions, foreign-invested enterprises and individual industrial and commercial households with independent legal person status in China. Each unit can get a main card and several (5-10) supplementary cards when applying for a credit card. Individuals applying for credit cards must have a fixed occupation and a stable source of income, and provide a guarantee to the bank. Guarantee forms include personal guarantee, unit guarantee and personal capital guarantee. The application method is generally to fill in a credit card application form, which generally includes the applicant's name, basic information, financial situation or source of income, guarantor and his basic information, etc. and submit certain copies of certificates and vouchers to the issuing bank. After the customer fills out the application form truthfully, he or she should also submit relevant credit certificates and a credit card contract attached to the application form. The applicant authorizes the card-issuing bank or relevant departments to investigate its relevant information and submit a statement of information authenticity, the card-issuing bank's privacy protection policy, etc. , and must have the applicant's signature.