If it is a China Merchants Bank credit card VISA card, after the credit card account is settled, please call the customer service hotline, follow the voice prompts to enter your ID number or card number and query password, and then select "9" transfer service A specialist will handle the cancellation for you, or you can directly apply for cancellation through CMB Credit Card WeChat customer service. Cancellation is free. After cancellation, the card cannot be used immediately. It will be reconfirmed in 45 days to prevent overseas uncollected transactions or unknown interest. To cancel a business credit card, you need to contact the company to apply for a special business processing form.