May have been the case a couple of years ago but I know of at least three people who have gone down this route and SKY have just said bye bye to all three of them. Maybe they were unlucky but I wouldn't hold my hopes out for a new deal on this particualr score.
Nonsense.
See
this article published in November 2012 .... the subheader says
"BSkyB says its strategy to focus on retention over acquisition now it has reached the 10 million customer landmark has effectively helped it reduce churn and increase revenue."
Customer retentions is a very important strategy of any business model that is reliant on subscriber volumes and associated churn (e.g. home internet connections is another example).