Its motability that have changed the spec code not the dealer.
motability are saying that the spec has changed and some point but it has not since the time i ordered they probably updated their system as the car is no longer available on the scheme was limited edition and the code that it has changed to has a more expensive price.
the dealer ordered the car 2 days after i ordered so 16/12/20
the dealer is saying it is not their fault and motability are asking for the increased cost not them.