China Merchants Bank credit card requires you to hold the card for six months before you can apply to China Merchants Bank for an increase in the quota. In the meantime, you only need to keep good card habits, swipe your card as much as possible, return your card on time and in quantity, and reduce the number of withdrawals, which will basically succeed. If you can't increase the credit card fixed limit temporarily, you can apply for a temporary limit. The success rate of applying for a temporary quota is much higher than that of withdrawing a fixed quota, especially during the peak consumption period such as holidays, banks will relax the review of the temporary quota.