Just wanted to give an update to this:
Chiswick VW called me over jsut before xmas, and tested the paint on my car with the analyzer.
weird thing pretty much most of the panels on the car had been touched up ( this makes sense as i know the passenger side had been keyed so they would have had to respray the affected panels and then blend in the bonnet and the boot.)
fortunately the Drivers front wing (where the damage is) hasn't been touched and so they have agreed a 100% good will to replace the panel!
if it wasn't for this forum, i would have paid for getting that panel fixed and resprayed!
Thanks guys