Hi mate,
If it has already been resprayed it could be tricky to get a spot on match, is there anyway of caontacting the person who had it sprayed to find out where they got it done?
Only other way is to go into a Motor Factors and ask them to get out a load of VW Colour Chits and match them on the car.
main problem you will find is your car is likely to be a Pearl Basecoat therefore changes on different angles (needs to be sprayed out to get full effect)
Good Luck!