If it is a China Merchants Bank credit card, there are currently three ways to apply for a fixed credit limit adjustment: 1. After you have held the card for a period of time (recommended after 3 months), you can call the customer service hotline to apply for an increase in the credit limit. We will apply for you based on your past card use; 2. Or when your financial level has improved to a certain extent, you can also provide us with relevant certificates (such as real estate, car ownership, and China Merchants Bank savings certificates that you have not provided before etc.), fax or mail proof of financial resources that was not provided before applying for the card, including a copy of the real estate certificate (the real estate certificate must contain the name of yourself or your spouse or minor children). The relevant department will re-examine based on your new information. 3. Log in to credit card online banking (Public Edition and Professional Edition), Account Management - Account Limit Management - Fixed Limit Adjustment - Apply to increase the fixed limit. After application, it will be reviewed based on your card usage. If you have downloaded Pocket Life, you can pay via card*--operate in limit management.