£25 is the cheapest option, unfortunately we want 3 of the 6 mixes and as they only go in two's have had to have 4 at £28.
Be aware that if you intend to set the sky+ box from a mobile phone that you won't get the nice sky+ menu on your mobile phone (like they've been advertising) as you have to have either movie or sport mix, you only have text message option (another con to get more money from you I think).
If it is any help - after quite a battle and many phone calls (using the 0800 number in this thread http://www.avforums.com/forums/showthread.php?t=368635&highlight=0800) I was eventually able to purchase just the £10 record/pause with no other package. I got many different answers from various people at Sky but just kept phoning again until I got someone who said they could definitely do it, (a lady called Elizabeth actually).
The process was that I had to sign up for the £15 contract which was immediately cancelled leaving the £10 per month record/pause deal.