If a user needs to amend the mobile number, that is used for 2 step authentication, they can follow the instructions below.

Using the email option for 2 Step Authentication will allow you to received the code via email to be able to log in without the old mobile number. Once logged in you will be able to:

1. Hover over the User icon (Your Initials)
2. Select Edit Profile
   
3. Select 2 Step Authentication tab
4. Click Edit
5. Select Yes to the question Would you like to reset mobile?
6. Click Save
   

The next time you log in you will be prompted to set a new mobile number.