Poor customer service

I bought a car at auto pedigree Pretoria north on 12 March 2018 and on 20 March 2018 the car started to smoke at the bonnet while I was driving back home.I stopped and called auto pedigree they referred me to road assistant .I called them they sent a tour.they toured my car since then they don't call me to let me know .I called them they said they sent it to Renault.and then kept quite.I called the sales person he doesn't hold my phone calls.I called Renault they told me they are waiting for approval and service history from auto pedigree which they are not aware of it. so I'm tired I need help urgently. they just sold me a car that has a problem and it's now two weeks I hardly get call from the garage I bought the car they always tells me they are renovating it's hard to work when I call.