Thanks for the info much appreciated .... I ended up going to the dealer and they had the part in stock for £12.65 Raymond Garej strike again (in a good way).
I really don't know what happened to the other one, all I know is that last time I saw it it was in the glove box.
But I've written the code on the
sticker in the glove box and placed the new locking nut key in the boot in the spare wheel tray with the jack.
Getting new tyres fitted next week so I'm a happy bunny again