To Unregister OTP, go to link below to Sega ID Login Page. After Logged into SEGA ID page
1. Click on account Management
When come to account management page
1. Choose one of the authentication method(you have selected during account registration)
2. Enter the selected secret question answer.
3. your SEGA ID email address
4. Confirm
After click on the confirm button, Scroll to the bottom you will see
1. One Time Password tab
2. Click on this unregister button
After Clicking unregister button, you will redirected confirmation page
1. Click on unregister button again
Again confirmation
1. Yes (Click)
2. No
After Clicking Yes, OTP Unregistered Successfully