Valid claim declined Unfairly

On the 30 June 2017,my car was hit by an ambulance on my driveesy.The ambulance was driving at a very high speed bcos as it hit ma car ,my car took a spin nd ended up facing the opposite direction.The Ambulance only managed to stop at de 5th house away from my house bcos he was on high speed so he could stop immediately. Metro police came nd drew a scratch which gave a picture of what happened .The owner of the Ambulance then arrived and after hearing our story ,he called his insurance (Momentum) and he gave a number and told me to call Bianca frm Momentum.instead wen I called I ws told to talk Tanya Delarey.I sent all documents to Tanya Delarey nd on 26-07-2017 ,I received a call from a guy who told me he told he ws calling on behalf of Momentum.Because my car was nt drivable ,he sent a tow truck to fetch my car.the next morning a guy called Deon called me asking me how much Nd where hd I bought mag wheels Nd for hw much.i gave him all de details.To my surprise on the 10-08-2017 I den rcv an SMS VFV attorneys saying dey giving me 14days to pay their clients Emergen Ambulances an amount of R16 724.77 for the Liability for the incident on the 30th June 2017. As if it was not enough ,as the still had ma car ,I den rcv a call from panelbeaters tell me dey want to bring back my car .The car was nt fixed bt had a lot of markings as it was prepared for repair by in fortunately Momentum had a sudden change of hearts.Mind you I ws neva contacted by Tanya Delarey or anyone from Momentum just to tell me dey are bringing my car back by was told by the penalbesters.I feel betrayed by Momentum as a result I cancelled all my policies.They showed me dat the value money more than life.The owner had told me he insured 5 ambulances so Momentum felt de HV to preserve and keep the ambulance Nd still think I should thank him for nearly ****ing ma son on my driveway. I'm heart broken and need justice on this matter. Heart broken Jane Letsitsi