Come to think of it, I phoned LV for a quote yesterday myself; quote without the mods was £1100, quote with black grilles, black exhaust tips and black badges, rocketed to £1600!! You may have got someone that was confused and thought it was a factory-fitted option?
Best to get in writing anyway mate, let me know how you get on; if LV say I don't have to declare then I'll probably end up going with them anyway to be honest, may give them another call this morning...
F30 330d M Sport Mineral Grey / Coral Red
Pro Nav/Visibility Pack/Comfort Pack/Harman Kardon/Head-Up Display/Electric Seats/Comfort Access/Adaptive Suspension...