Unresolved car accident claim from Miway

Been treating unfairly - my son was in a accident and its been 14 days and the results is shocking !!! They did NO effort to find the driver that side swept him almost into the upcoming traffic ... they didnt contact my son nor the witness - the assessor claims he did spoke to my son which he didnt !!! The assessor, Gavin, told me to take the vehicle to CMC in brackenfell , they said there is nothing wrong with the cars wheel allignment - i took the car the next day to Goodhope tyre & they put it on the machine and put it on the lift at my own expense , the wheel allignment is so out theres a vibration and the one mag is bend which causes a vibration on the car ... underneath the vehicle u cn see clearly the vehicle went over the middle lane - the assessor says it is from wear and tear ... its ridiculous how MiWay calls me a "golden client" and being their client 8 yrs this is the first time i actually put in a claim

The vehicle is a Amg C63 Mercedez - SPOTLESS , owe they also dont want to pay for new mags eventough the mags that was on the vehicle at the time was not the original AMG mags but is a 4th of the price of the original mags

I phoned more then 10 times and the outcome cant even cover the costs a 3rd of the vehicles damages

MiWay is a lieing unreliable insurance company which i would not advice to anyone - i only asked for help and i received NON