Am I right in thinking that your broadband is still working if you are posting here, you could try rebooting both boxes if you haven't already tried that and if it doesn't work I would call Virgin on 150 from a Virgin phone, mobile or landline, or 0345 454 1111 from any other phone and select the leaving option, they are usually UK based and easier to understand. You might need to wait until tomorrow morning and then call around 8am when they open.
It might just be a timing problem waiting for Virgins systems to update.
