Not necessarily useful. Because there is a cost for banks to approve credit cards, the cost of each credit card is more than 200 yuan. If after a credit card is approved, the cardholder closes the account without using the card because the credit limit is too low, the bank will suffer losses. If you apply for a card after canceling the card, the bank will be concerned and will wonder whether you applied for a credit card maliciously.

So I don’t recommend that you cancel your card because of its low limit. Even if you apply for a new card, the limit will be based on the limit of the card you canceled, and it won’t be much higher.