1. Apply for a credit card when you don't have a stable job: the unstable job means that the applicant doesn't have a stable income, and the bank may not approve the card;

2. Apply for a credit card 2-3 times a month: some users fail to apply for it for the first time, and then continue to apply, which is more likely to be rejected;

3. Fill in the application materials at will: When the user fills in the application materials, the basic information such as name and mobile phone number can't match, and even the preliminary examination of the bank can't pass.