Error in Account Email - Help me Access my Account and Change Email

I have recently signed up for a student internet contract - I have access to and a copy of the order forms. Unfortunately, I mistakenly misspelled my email when signing up for this contract meaning that the email address associated with the account does not exist.

The problem I am now faced with is that I cannot access my account. The only correct piece of information associated with my account is the phone number. I got the following text from Virgin Media on this phone number, 

"Hi there. The email address we have for you no longer exists.
Sign in or register at virginmedia.com/myvirginmedia to update your sign in details to a verified email."

Clicking on this link, I created a Virgin Media O2 ID and tried to link it with the account associated to the internet contract. I have so far failed to link it to this Virgin Media O2 ID account as the email address does not exist and I do not have information from an official bill - they ask for the last name on the account, the account number (which I have not received), and the area reference number (which I have not received).

Any help or advice on how to link the account would be much appreciated!