Thanks for everyones help!
I used the 01506 421884 number to contact Sky to downgrade my package tonight and the total length of my call including being transferred to another operator and her offering me a deal was 9 minutes!!
She also said that I could save money on my call to Sky if I was a Sky Talk customer, but I never told her that I used this site and my monthly minutes plus stop the clock on my Vodafone mobile
Thanks again everyone, this site is great