1: It is likely that the income or asset certificate provided by you when you apply for the card is insufficient, and the bank will not approve it on the grounds that you are unable to repay;
2. You have an overdue or bad credit record before;
3. You have submitted too many bank card applications at the same time, and the bank considers that you may have the possibility of malicious overdraft.
After knowing the reason, you won't take a detour if you apply for a credit card again.