Generally, the credit card limit of a bank is not superimposed, unless the credit cards of different accounts are shared, while a bank handles multiple credit cards and generally shares one account.

So it is difficult to increase the quota when applying for a new card.

In fact, if you want to increase the credit card quota, you can also apply for withdrawal from the bank, apply for a temporary credit card quota, and apply for credit cards from other banks, because the credit card quotas of other banks are not shared.