Lookers Motherwell Taggarts Land Rover

Purchased 8 New Landrovers 3 Range Rovers, 3 Evoques, 2 Sports. Paid deposits on all cars as agreed in June 2013 we agreed to receive all cars for March 1st 2014 now the garage is refusing to honour the order form as they can sell for more money! even thou we have paid deposits and have the order forms and entered into a contract to purchase these cars as we have been waiting for months already. We have paperwork aswell as emails to prove all the above this garage discounted the cars by £2,090.00 on each car