Hi - iPhone 5S; when I try to log in to BT with FON I get the 'not recognised' message, which says username is "usually your email".
To log in for my bills, etc, my user name is firstname.surname without any @ etc. When I signed up for Infinity, I was given an email of initialsurname and three figures. I keep that as my safe email and have a couple of sub emails, one of which is the one BT uses to email me.
My problem is trying to work out which ID I'm supposed to use for BT with FON, since none of those seem to work. OK... the problem may be on my end of the phone... I can't GET them to work... 😉 .
Advice gratefully received.
you need an email address - your name sign in won't work with btwifi