Thanks Tickedon,
I think (with the benefit of hindsight perhaps naively!) that as the dealership was making the right kind of noises I presumed it would all be sorted to my satisfaction within a few days.
I’ve spent a long evening looking at lot of things on the internet regarding who is responsible and my rights.
Yes , you are spot on, it really has little to do with Lexus UK, my contract is with the dealership and they should rectify it. I can appreciate that it’s not perhaps their fault but they should be sorting this issue out themselves then taking it up with Lexus. I’m pretty sure they must know this so it makes me wonder if the “offer from Lexus” really originated there.
Time to decide which legal assistance policy I should use perhaps!