yeah mate i was only on 10, and whinged that sky can offer me 20meg for a 5er a month, which both me and him knew was a total lie but that was the blag i gave, the virgin representive said that isnt possible, so i asked what possible deal he could give me to stop me trying skys services, he said it'll be an extra 2 quid a month but that id get that reimbursed by a payment of 18 quid off my next bill, so got upgraded to 20meg free and the superhub for free, although it was a new 12 month contract but thats ok as virgin are by far the best internet service provider!
hope that helps, if not tough coz im a little pissed, lol!