Smart Search has opened Huawei's credit card application channel, which means that banks recommend users to apply for credit cards. Smart Search has now opened Huawei's credit card application channel, which is an operation to guide users to apply for a credit card. This is a notice from the credit card customer service to apply for a credit card for invitation. If you don't apply for a credit card, you can ignore it. A credit card is a credit certificate issued by a commercial bank or a credit card company to qualified consumers. Its form is a card with the name of the issuing bank, expiration date, number and cardholder's name printed on the front and a magnetic stripe and signature on the back.