1. A person can apply for a credit card from several banks at most. There is no limit. As long as you meet the conditions, every bank can;

2. The same bank can handle up to 5- 10 cards, and the quota is shared; After a certain number of credit cards are reached, banks will not approve credit cards again;

It is useless to have too many bank cards. There are 2-3 banks, one for each bank.