The problem is that Alcatel-Lucent look after Sky's network and they seem to be a bit overwhelmed at the moment. At my exchange, they kept shifting the date of the backhaul upgrade so it ended up taking 3 months to get it sorted.
The campaign of complaints via the Sky help forums seemed to help because eventually Sky started providing official updates on the work schedule.
yes I am sure they will get the work done eventually, but when customers are paying now, getting a solution eventually is no consolation!
I am in the process of changing so it wont be affecting me soon, others are not so lucky at getting out of their contracts.
good luck peeps