The community may be able to help, or get enough information to assist the Forum Team in help you. The Forum Team don't put the phone down on you! I can only give advice on email, so if you have questions about your mobile account - you may need to post about that in a different part of the community.
Can you confirm if you are a Virgin Media residential broadband customer?
Can you sign into your billing account, or are you locked out of that as well?
And is your email address linked to your billing account? It would show on the my profile page, or the manage accounts tab (see photos).