Worst customer service and bad dealership

I have bought a car last year December at Auto pedigree Polokwane central , It had leaks, which i reported. We then made an arrangement to say since im using the car for official use, I will take leave from work so that the dealership is able to book in the car for repairs. After I booked 2 weeks leave the car was never booked in until the leave ended. When I call they always say they will get back to me until recently when I called and the say bookings has been made and I should bring in a car on Monday the 17th of August, which I did and they said the car will be back on Wednesday. Wednesday they never called for collection or update, Thursday I called and my calls where not picked, I then send a watsapp to request progress and they said they will make follow up, which they never gave feedback. Today I send a watsapp to request feedback but no response again. Mr Singo, the regional manager has been aware of the issues, I have sent a email of which he never responded and he is not picking my calls.