I have a rule of thumb - NEVER go to get work done by VW because you can always get it done cheaper elsewhere. At the end of the day you get the same thing done. But then again, i wouldn't pay £200-300 for window regulators/motors. It just isnt worth it. I got my used window motor from ebay 2 years ago and its still going strong. It is partially luck though. If you want brand new ones, i would check prices from places like euro car parts, car spares etc. I only go to VW for engine/service parts.