redtrev this is one of the reasons WMC started this forum, you do have options and you do have places/people to turn to. Bionicrusty has given great advice and i echo his comments, my advice is to hang in there give it a few days, although some dealerships are reopen Motability and dealers are playing catch up, at present the march 24th is a key date as thats when all handovers were put on hold, recently Motability themselves in accordance with the easing of restrictions have started inviting people with vehicles awaiting collection to do so in Phases, from the 9th june motability are moving up a phase and allowing dealers to contact and facilitate those that are awaiting collection or on order. it is a stressful time at the best of times but you dont and are certainly are not alone you have the whole Forum behind you, my advice would to be for your wife to contact Motability and explain its causing you distress and ask for a them (motability) to deal with and update yourselves on progress, Motability should although as yet not fully back to full strength be able to allocate you with an individual case adviser (request one, they dont mind) Motability will then contact the dealership and update you.
dont feel your moaning as most on the forum will understand and are here to help, its our users that makes this the safe and friendly place to be and even if you want to chat or get something of your chest we have the Off Topic forum, trust me every dealership will want any car picked up and signed for ASAP.
make that call to Motability and get a case adviser and yourself and your wife can relax, it will soon be sorted. good choice of car by the way.