I also have this problem.
I have been unable to access my email today and tonight managed to view emails through mail.virginmedia.com and noticed an email from firstname.lastname@example.org which says:
You have successfully reset your password.
You'll need to use the new password you've chosen wherever you use your My Virgin Media account to log in.
If you haven’t tried to reset the password for your My Virgin Media account and this wasn’t you, please contact us.
The Virgin Media team
P.S. We don’t pick up emails from this mailbox, so please don’t reply to this email address.
My name is Nigel, not Roger! and If I use the link provided I get the following message:
Your browser sent a request that this server could not understand.
Size of a request header field exceeds server limit.
Any help is much appreciated.