I've just had full-fibre installed in my new house (very fast, very impressed) - and trying to sign into 'my-bt', partly because I'd like to get the Xbox GamePass offer.
When I read the instructions, it said I needed to use the same microsoft account as the Xbox, so the offer was correctly replied; I read this as needing to change my BT ID to the same e-mail. So, when I first logged in, I clicked 'Change BT ID', and entered the other e-mail in.
I got the 'change BT ID' e-mail, but when I click it and enter new password, I get a red 'Sorry, Something Went Wrong, Try Again Later' message, and I can't get any further.
I since realised I didn't need to change my BT ID - just make sure I select the correct Microsoft account when I redeem the offer. So I've tried to cancel the 'BT ID Change' - but can't. The change hasn't gone through (see error above), and when I try to log in with the original e-mail address, I get a message, "This ID hasn't been activated". However, the activation e-mail doesn't turn up - instead, it sends a 'Change ID' e-mail each time I try to activate. This seems like a bug - and I'm stuck in that cycle.
I'd just like to activate my original e-mail address, but can't because it's sending me the change-ID e-mail instead, which doesn't work. Help!
Try phoning CS 150 or 0800800150 from mobile and see if they can help you sort it out
Tech support on chat have been quite helpful. Though they've taken me through exactly the same loop I've been going through already myself... I think it's a bug in the system - I've basically created an impossible condition, where my account isn't activated, but I'm trying to change ID, which won't complete because the account isn't activated - and BT won't send the activation e-mail because I'm trying to change ID... Got to love IT...
Just in case anyone else has this issue; it was resolved by:
Going to BT.com - create new account. Entering account details, selecting brand new e-mail address (not one of the 3 already used!), and activate that one. I'm not going to try changing the ID back to the original one out of fear it will all break...