If it is a CMB credit card, there are several reasons why you can't withdraw money: 1. The available credit limit of the credit card is insufficient. 2. The withdrawal amount of credit card is not enough: generally, the cumulative withdrawal amount does not exceed 50% of your credit limit (young cards can be borrowed in advance 100%. 3. Abnormal card status/degaussing: Please recall whether there is overdue repayment in the near future/try on other machines. If it still doesn't work, you can only apply for a new card. 4. Machine communication problem 5. Overlimit: the daily cash advance for each card does not exceed 2,000 yuan (5,000 yuan for Pocket Life/Online Banking); The daily cash advance of each overseas family shall not exceed the equivalent amount of US$ 65,438+0,000, US$ 5,000 within 65,438+0 months and US$ 65,438+0,000 within 6 months.