Thanks for the comments.
The problem is that my relationship is with the lease company, not the dealer. In fact I have no idea who the dealer is. My current lease car, Honda CRZ, was 6 months late (remember the Tsunami in Japan? apparently lots of factories that made bits for Honda's were badly affected). I get that and didn't have a problem with it. But this shifting of the delivery date at the last minute just smacks of poor management somewhere along the line or maybe it was ready, got damaged and they have had to fix it. (hope not)
I'm sure it will arrive at some point - Ill let you know, It had better be perfect!!