Discovery Insure poor customer care

Made a claim to Discovery Insure(April 2019), after a guy had reversed into my vehicle, whilst at a local garage ,accompanied by my boyfriend. I was told that the damages would cost an excess amount of R3800. I was contacted by a legal rep in July , handling my case, stating that the 3rd party refuses to oblige and I would have to get an independent witness in order to proceed with my case. I was told that my boyfriend could not be a witness. I informed the rep that the incident took place at a garage and surely the video footage from there could serve as evidence. I was told that it would be difficult to obtain the video footage and even if they did I would still require an independent witness and until then my case would be closed. The guy who damaged my car had stated to me on the day of the incident that he was not the owner of the vehicle he was driving. He also spoke untrue things about me in his statement along with the owner if the vehicle who was not even present at the scene of the incident. This is very disappointing as you would expect better customer service from such a well renown insurance company. A 3rd party witnesses statement was agreed upon over a clients statement. How many other clients will be put through this and lose their hard earned money?Totally unacceptable. Would never recommend Discovery Insure to anyone and definitely considering changing insurance companies.