Increasing the fixed amount must be reviewed by China Merchants Bank, and China Merchants Bank will also take the initiative to increase the fixed amount for cardholders with good card records from time to time. To increase the fixed limit of the business card, you need to contact the company for adjustment. You can log in to credit card online banking at any time and click Account Management-Account Limit Management-Quota Adjustment to apply. You can also fax (02 1-38566200) or mail the financial certificate that was not provided before applying for the card, including a copy of the real estate license (the real estate license must include the name of yourself, your spouse or minor children, and a copy of any water, electricity and coal invoice documents of the real estate license in the last three months), a copy of your vehicle driving license, a copy of the running list of China Merchants Bank's savings account in the last three months, or the original proof of the balance of wealth management accounts opened by branches of China Merchants Bank.