If you go for a Garmin "repair" you will definitely get a refurbished unit back and not yours repaired.
Well, just to round it off:-
I waited until the new year to send it for repair (the 4th Jan I think). It was cheaper to get a return number by phone £72.5 rather than the £82 online price. I received a replacement/refurbished unit by the 9th. Its a bright shiny pristine unit. No marks on it including the mount.
So if you can't afford a new Edge 1000, buy a complete piece of junk on Ebay and send it in for refurb!