I've not had the click but my clutch started squeaking at 500 miles,(just on the the initial movement -top 10-20mm). Sounded as though it was right at the top of the pedal. The good news is, it's now stopped at 600 miles!I did wonder whether I'd pushed it further to the floor on a few occasions, probably in annoyance and that had settled it in a bit more.
I know, I didn't think it made sense either.
Pleased to report the squeaking clutch has been eliminated at the 1000m look over.Dealer fitted a new clutch switch, this is the clicking noise you hear when depressing the clutch. The switch does something clever with the engine management unit and assists emissions and economy-I think!
All the Gti's they have sold have had the same issue. It was a few days wait for the part and 40 minutes fitting.