If it is a CMB credit card, you can cancel it immediately. Please call the customer service hotline, enter your ID number or card number and inquiry password according to the voice prompt, and then select "9" transfer service specialist to cancel it for you, or apply for cancellation directly through the manual customer service of China Merchants Bank Credit Card WeChat. Cancellation is free. After cancellation, the card cannot be used immediately, and it will be reconfirmed after 45 days to prevent unpaid transactions or unknown interest abroad. Business credit card cancellation needs to contact the company to issue a special business processing form application.