Help!!! roof issue insurance claim

Our Ford Focus CC (convertible) was involved in a accident in which the other party crashed into the rear of our car. He admitted full liability and our car went for repair.

The cosmetic damage has been repaired however the convertible car roof no longer works.

The insurance company is disputing that the crash was the cause of the roof failure.

To me the matter is very straight forward, the roof worked before the crash and because of the crash it no longer works.

The insurance company "One Call" uses "Commercial Legal" to handle claims and they outsourced it to "Chief Rentals" and they have instructed the "National Accident Repair Group"
to inspect the vehicle on 24/08/2017 (tomorrow) to determine if the accident caused the roof failure.

As the roof worked before the crash and it doesn't work now either the accident was the cause of the roof failure, or the Ford Garage broke the roof
during the repair.

If outcome from "National Accident Repair Group" isn't that the roof failure was from the accident then Ford broke the roof and I'll need an
independent assessment done to help prove that.

The roof did work before the crash however after the crash we didn't test it ourselves I was wary that it might get "stuck" open or cause more damage,
I suspect therefore that if the roof/hydralics were "tested" during the initial inspection then that (as the boot was "bent") or the actual accident have
caused the roof to fail.

Does anybody have any advice for me at this point.

Does anybody know an expert Focus CC mechanic I can take the car to for the independant engineers report and I need to get the car and fixed at some point.

Hi. At this stage, we do not know what the outcome will be of course so its the waiting game but good thinking re getting an independent report although I can't advise on who would specialise in such repairs.

Ultimately, if the garage broke the roof during the repair, the insurance company is still liable in my opinion (though my memory is hazy on agency agreements) because all those additional companies are agents for the insurance company.

If needs be, I'll try to find my notes on the subject but for now we will see what happens.

im trained to work on the cc roof system and i struggled to fix them. probably they have disturbed the micro switches to stop the roof working when you have a load in boot area.
i avoided working on them if at all possible. replacing seals and getting them lined up a nightmare, as was adjusting the glass to give a weather proof seal.