Turns out Sky don't do 12 month offers any more so that was for 10 months then back to full price for 2 months.
They would not budge on that.
EDIT: Turns out I can ring back in 9 months and they will see what they can do so not too bad in the end.
Enquired about Sky Q which is the standard £12 extra a month which again is not too bad to get Sky upstairs - only downside is they want £100 for installation.... need to think about that one.
They do default to 10 but I've pushed them to 12 twice now, for myself and the GFs mum on her behalf.
If they are saying you can renegotiate it 9/10 then it might be ok, I wasn't keen on two months full price.