Bad customer service

I had a road accident on the 3rd of September 2018 and my vehicle was sent to Auto body Durban central repair center by the insurance (Car King) for repairs, my car is still not repaired and I'm now forced to use public transport, I've contacted the repair centre several times with no way forward their excuse at first was that they were waiting for parts to be delivered from abroad and was given a time frame of 19 day's however its now been over 38 day's and no one has answer's, they ask to get back to me and they never do, they don't even offer a curtusy vehicle while they don't have any answers.