
Here are the part numbers:
5G0 805 911 P
5G0 805 911 T
5G0 805 911 G (This has been superseded by 5G0 805 911 H
Going by the PR codes listed for my car, I have the rev T fitted. I posted the full list of codes for my car in the build thread. If you want me to check yours, post up a pic of the vehicle data sticker from the service book. Cover the VIN.
Any parts department will be able to tell you which part should be fitted to your car. You could take off yours and check the p/n.
I don't think it's worth arguing with VW. If it bothers you that much, just buy the rev T and fit it. It will cost £19-£21.