If it shows that credit card is not supported this time when using a credit card, it is probably due to the following reasons:

1. The system detects that there are risks in the transaction, so it limits this time trade.

2. Credit card accounts carry high risks. The card-issuing bank has implemented risk control, and the card is restricted from making large purchases.

3. The transaction exceeds the prescribed single transaction/single day consumption limit (for example, Alipay credit card quick payment has limit regulations. Credit cards of different banks have different limits. For example, the limit of China Construction Bank credit card is: single transaction/ 50,000 per day, 100,000 per month; China Merchants Bank credit card limit is: 100,000 per transaction, no limit per day/month).

4. The merchant has not activated the credit card payment function.

5. The available credit card limit is insufficient.

Main features of credit card:

1. Credit card is one of the fastest growing financial services today. It is an electronic currency that can replace traditional cash circulation within a certain range. ;

2. Credit cards have both payment and credit functions. Cardholders can use it to purchase goods or enjoy services, and can also obtain certain loans from card issuers by using credit cards;

3. Credit cards are high-tech products that integrate financial services and computer technology.

4. Credit cards can reduce the use of cash;

5. Credit cards can provide settlement services, facilitate shopping and consumption, and enhance a sense of security;

6. Credit cards It can simplify payment procedures and save social labor;

7. Credit cards can promote product sales and stimulate social demand.

Main types

According to different card issuers, they can be divided into bank cards and non-bank cards

Bank cards. This is a credit card issued by a bank. Cardholders can shop at the card-issuing bank's special merchants, and can also withdraw cash at any time at any branch of the card-issuing bank or at places with ATMs.

Non-bank card. Such cards can be specifically divided into retail credit cards and travel and entertainment cards. Retail credit cards are credit cards issued by commercial institutions, such as department stores, petroleum companies, etc., which are specially used for shopping in designated stores or refueling at gasoline stations, etc., and are settled regularly. Travel and entertainment cards are credit cards issued by the service industry, such as airlines, travel companies, etc., and are used for purchasing tickets, meals, accommodation, entertainment, etc.

According to the different objects of card issuance, it can be divided into corporate cards and personal cards

Corporate cards. Company cards are issued to various industrial and commercial enterprises, scientific research and education institutions, national party and government agencies, military units, groups and other legal organizations.

Personal card. Personal cards are issued to urban and rural residents, including workers, cadres, teachers, scientific and technological workers, self-employed households and other adult urban and rural residents with stable sources of income. A personal card is applied for in the name of an individual and he/she bears all responsibilities for using the card.

According to the credit status, status and other credit conditions of the cardholder, it can be divided into ordinary cards and gold cards

Ordinary cards. Ordinary cards are issued to cardholders with average financial strength, credibility and status, and their various requirements are not high.

Gold Card. A gold card is a high-end credit card that pays high membership fees and enjoys special benefits. Cards are issued to those with higher credit standing, stronger repayment ability and credit, or those with a certain social status. The authorization limit of the gold card starts from a higher level, and the additional service items and scope are much wider, so the requirements for relevant service fees and security deposits are also relatively high.

According to different repayment methods, credit cards can be divided into credit cards and debit cards

Credit cards. It is a card-issuing bank that provides bank credit. When making a payment, it is first used as an overdraft, and then repaid or paid in installments. Most of these cards are used internationally. That is to say, the way that cardholders are allowed to pay off their credit card accounts without deposits is "spend first, deposit later". Most of the cards currently used internationally are of this type.

Credit and debit cards. It is a credit card issued by a bank that allows you to deposit money first and spend later.

When applying for a credit card, cardholders need to deposit a certain amount of money in the card-issuing bank for backup. Cardholders need to use the deposit balance as a basis when using the card. Overdrafts are generally not allowed.