The tips for maintaining a credit card are as follows:

1. Swipe your card frequently. The monthly consumption amount is about 70% of the credit card limit, which increases the diversification of consumption and increases bank profits, which is conducive to increasing the limit.

2. Appropriate cash installment. When applying for cash installment, the installment limit will occupy the credit card limit. Applying to increase the limit later will help increase the limit.

3. Use more temporary quotas. China Merchants Bank raises temporary quotas quickly. Basically, it can increase the temporary quota once in more than a month, and it can be increased continuously.

4. Online shopping app consumption. Using a credit card to make purchases on China Merchants Bank's online shopping app increases the diversification of consumption and at the same time brings greater profits to the bank.

5. Consumption in Hong Kong and Macau. The effect is super good.