Sky probably doesn't ask for a MAC as it is to MPF.
As the others have said, it looks like either Sky hasn't enabled the exchange for FTTC, which is unlikely seeing as FTTC has been available there for at least a year, (assuming the OP is out of his minimum term), or they are full themselves on that exchange.
My broadband basic info/help site - www.robertos.me.uk
| Domains,website and mail hosting - Tsohost
Connection - Plusnet
UnLim Fibre (FTTC). Sync ~ 53.4/16.8Mbps @ 600m. - BQM
"Where talent is a dwarf, self-esteem is a giant."
- Jean-Antoine Petit-Senn.
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.