"My password is accepted at every other Telecom/Xtra/Yahoo login but the password changer"
Did you use any capital letters when you created your email account?
(Ex: Name@xtra.co.nz).
My understanding is that if you do so, an additional username is created
without any capital letters.
(Ex: name@xtra.co.nz).
You can use both to log on to your email account, but you can only use the original username
you created with capital letters when you want to change your password.
Best Regards
Göran Persson