Extremly bad service from insurance company

I want to complain about the bad service i received from the above insurance. Their client drove into my car while i was stopped at a traffic light. i made the claim over three weeks ago and after i subitted all the documents , i have not recieve any correspondence and their phone number doesnt work. Their driver admitted liability at the scene but the first email the insurance says i must claim from my insurance who will on turn claim from them. I dont want to do this. I keep sending emails but they dont reply and i am loosing business will my bakkie being out of action