Nightmare

I had an accident on 02 Sept. By 04 October when I had to return the courtesy car, repairs on the car had not even been started as parts hadn't been received. Parts ETC was 17 Oct, repair centre ended up receiving them a few days after. Repair centre finished working on the car 24 Nov but had to send it through to Volvo because it wasn't starting. Another week has passed without any progress - Volvo have been running diagnostics since 25 Nov and still have no idea what is wrong. I informed IUM (underwritten by Guardrisk) about this myself and an assessor still hasn't been sent to Volvo to check my vehicle - and apparently I can't even get them to commit to a time when this might happen. Mean time, I am without a car I actually need - this will be the 4th month.