1. From the Manage Profile page at "My Shasso", go to Security tab, then expand the mobile phone number section.

2. Enter your new mobile phone number, and click on "Request token" button. Retrieve and enter the token sent to your previous mobile phone number, then click "Save".

3. If your previous mobile phone number is no longer in use, click on the "Lost or invalid mobile phone?" button. Key in the last 4 digits of your registered mobile phone number for verification before we resend the token to your email.

4. Check your email and look for email "[Shasso] Your new Security Token is......". Enter the token you retrieve from the email and click Save.