At present, major banks are seizing the domestic credit card market.

In order to seize more customers, banks do not hesitate to issue cards repeatedly to customers who already have cards. Although it is a waste of resources, in terms of use, if you hold two BOC cards and one China Merchants Bank card, you will have more opportunities to swipe the BOC card (for example, the brothers of China Merchants Bank don't mind). This is from the perspective of maintaining customer loyalty, using multiple cards to cultivate your habit of swiping a certain line of cards.

Second, in other banks, since you have a credit card, it means that you have passed the credit review of other banks, so the approval process can be relatively simplified, and this cardholder may have more mature card habits than other new customers.

At the same time, in order to expand the number of cards, some banks will apply for one card and issue two or three cards without customers' knowledge.

For customers, hehe, it doesn't matter if it doesn't cost much anyway, and it doesn't matter if you have more cards. Moreover, the characteristics of major banks are that different card points of banks can be used universally.