The same bank can apply for multiple credit cards, but the credit line is shared, that is, the credit card with the highest credit line is the highest credit line. In the case that the same bank holds multiple credit cards at the same time, the credit lines of multiple credit cards are the same. Generally, credit cards with low credit lines enjoy the available credit lines of credit cards with high credit lines. In other words, if two credit cards can share a credit line of 8,000 yuan (but not every card has a credit line of 8,000 yuan), the cardholder will spend 5,000 yuan on one card and only 3,000 yuan on the other card; If one of them costs 8000 yuan, the other one has no quota. The quota can be shared, but the repayment cannot be shared. If two cards spend 2,000 yuan and 3,000 yuan respectively, the cardholder will only repay 5,000 yuan to one card, and the other card will be regarded as unpaid, which will lead to overdue records.

If you have other specific questions, I suggest you call the customer service staff of the bank, hoping to help you.