Yes, Veritas is the answer by the way. Thanks for the responses!
I am going back to lexus as we speak, have managed to get the worst of the shine out with a little white spirit, however still retains some shine. And seems to attack the plastic a little (not much though).
The fact that the supagard is supposed to actually REDUCE shine means I will be deanding they redo it all again, this time properly.
Oh fun and frollics!
Of course I could just wait three months for it to naturaly die down........