How to delete a course with SMS suffix?

Steps to add SMS mobile phone suffix and delete courses:

1, click to enter me.

2. Click to enter me and find the setting options in me. When you find the setting options, click Open.

3, in the settings, find the account and security, find the same click to open.

4. After entering the account and security, you can see your mobile phone number here. Now click on your mobile phone number.

5. Click on the mobile phone number and enter the page of binding mobile phone number.

6. Click on the top right corner of the page to find the unbound mobile phone number.

7. Click Unbind the mobile phone number, and a page will pop up in the window. The prompt in the window is also Unbind the mobile phone number. Click it.