Merc Constantia Kloof???

I have neve had such terrible service before. Took my vehicle in for service in April. I took the more than a month to complete my service. When I collected my car, the numberplate and a Of *****s were in the boot., as if my vehicle was in an accident. Maro the service adviser denied this. All of a sudden, the left passenger doir is not sealing. The car were overheating, took it back, they admitted the technichen broked the seal. Got the vehicle back, it was leaking oil and making black smoke when I start it. Took it back again. Nw they are charging me because the vehicle went out of service plan in this 5 months. I will never deal with them again. My white interior was full off oil hand marks everytime I collected my car. This is not BAD service........ This is NO service at all.