What are my Portal Login username and password ?
Your Portal Login username is your MTB numeric ID, ie. the ID you have always used to login to My Thunderbird.
If you have a Lifetime Email account, you can also use your email ID as your username.
Your Portal Login password is your MTB password.
Eg. the user with MTB ID '9999999' and Lifetime Email address 'firstname.lastname@example.org', can login with one of these two user names
9999999 or joe.student
and their MTB password.