Click Personal Center to enter the My Page of Dongka Space, click Personal Center, click Security Settings to enter the Personal Center page, click Security Settings, click Cancel Account to enter the Security Settings page, and click Cancel Account.

Look for the Dongka Space APP on your phone, which contains the CITIC China Seal logo, and click to open it; the default page to open the APP is my page, and the specific content is the credit card bill information and function activity channel, click Click on the user center in the upper right corner.

Go to the user center page, which includes credit card processing, order information and materials, etc., and click Security Policy.