Unfair and improper insurance service

It has been a horrific experience of 7 months without a car all for a measley pothole claim, Car was towed from PE (Accident scene) to Cradock for repair, This happened in July 2023 it is January 2024 with no outcomes, I was offered R1000 to fetch my vehicle, after much fighting and pleading they offered R4000, I went all the way just to find my battery is destroyed and my pre accident fully functional car was now in Limp mode. They cannot advise on the way forward and now telling me I need cash slips to prove my battery was in good condition yet the car was held for 7 months and now cannot start and when started with a new battery goes into limp mode. My car was driven on to the flat bed and had no mechanical issues and repairer and insurer is nochalant about me being disadvantaged for 7 months and now the car is not drivable and still in Craddock