Go to the bank counter or customer service and ask them to check what is wrong with your credit card.
The main reason for an invalid credit card is that the card is canceled internally by the bank because it is seriously overdue. The cardholder cannot find any information about the card on the bank's official website, but the credit card debt is still archived within the bank. Repayment cannot be made through the card number and can only be handled over the counter at the card-issuing bank's outlet. Once a credit card becomes invalid, it cannot be restored to normal. The cardholder's credit will reflect bad behavior and has entered the bank's blacklist. It is also a black credit account. The bank will not let the cardholder use the credit card again, even if it is blacklisted by the bank. The same goes for paying off debts. After a credit card is overdue and becomes invalid, if the customer wants to resume using the card, they need to pay off the overdue balance as soon as possible. After paying off the balance, they can proactively call the card-issuing bank to apply for re-opening of the card.
The first reason why an invalid merchant appears is that the merchant does not exist. This means that when we installed the machine, we did not submit the information to the bank or a third-party payment company for review, and the system background did not establish the merchant's information. Only at this time will the invalid merchant be displayed when swiping the card. It's easy to solve this situation, just submit the price increase information to the bank or a third-party payment company for review and archiving. Failure to activate the credit card may result in it becoming an invalid merchant. In this case, the cardholder can activate the credit card through the customer service hotline on the back of the card and follow the voice prompts. If it is caused by the wear and tear of the credit card's magnetic strip, you can succeed after trying a few more times without degaussing it. Or go to the counter or ATM machine to try the card. If it is confirmed that the magnetic strip is damaged, call customer service to apply for a card replacement. If the POS machine line is busy or out of order. You can try again later. It should be noted that abnormal card or account status, such as expired validity, loss report, freezing, etc., may also result in the card becoming an invalid merchant.
What is an invalid merchant?
The so-called invalid merchant means that the merchant information of the POS machine is invalid and does not have the function of credit card transfer.
Invalid merchant means that when a POS card machine checks in or uses a card, it prompts 03 or 02 invalid merchant response codes, which means that the merchant does not exist in the payment system. Generally, when installing a POS machine, you will first use personal information to register with the payment system. After the registration is approved, a merchant of your own will be generated. The merchant includes personal ID information and bank card information. After signing in for the first time and downloading the key, it officially means that your registered merchant is bound to the POS terminal, and only