PMD IS FAILING ME

I was involved in a car accident 21 Sept 2019. claim got approved 30Days later.

my car then got repaired by smash auto body and vital components was changed in the process, i got the car back for 8 days and it just died on the highway in the tollgate paypoint, i called the auto body to come an collect the vehicle in which they did on 18 Dec 2019, my vehicle has since been with the panelbeater since then with the panel-beater making up excuses not to fix the problem.

my vehicle was then sent to VW in Hatfield to check what caused the vehicle to die on the road and give a full report to the panel-beater as well as PMD, after calling PMD every single day and following up on my vehicle the report was received from VW 05-02-2020 with pictures of the damaged part that was a sparkplug hitten by the piston and damaged and want to blame me for the damages NO.

i cannot be blamed for something i had for 8 days out of 4 months.