You can cancel an order without penalty and, no, you will not incur a £250 charge. That only applies to early terminations once you have the car. Ideally, you wouldn’t have paid the dealer a £99 deposit (that’s not a Motability requirement but dealers are at liberty to ask – although most of us refuse to pay a deposit). The dealer should refund it though. If they play silly buggers, tell them that you had not entered into a contract, or legally binding agreement, with them (that only happens when you enter your PIN as you accept the car) and you are cancelling due to uncertainty over delivery date. If they still say that the £99 is non-refundable, tell them that you will take it up with Motability. The dealer will know that Motability have a ‘fine’ system for dealerships who give poor service and they won’t want to incur that, as it will be more than the £99. Good luck and please report back to let us know how you get on.