Bad Service - Worst experience

I took delivery of a Sandero Setpway on Saturday 28/07/2018, only to immediately notice the car had a very strange sound. I immediately returned the car to the dealer. Ida the sales lady who was assisting me and her colleagues treated me very bad telling me they are not mechanics to know if the car has any defects to it. There was a couple of other things like registration of the vehicle and renewal of the license disk which were also not done. I was assisted to get a curtsy car by the manager Debbie, Since the weekend no one has called to tell me what the problem is with the car, i have to constantly call throughout the week and I spoke to Charles the manager on the used car division who was very rude and demanded he wants the curtsy car back but never really bothered to call me the following day to tell me progress on the vehicle i have purchased. I was promised to get feedback yesterday by Jaco, i am still waiting. No correspondence nothing from this branch.