Mercedes benz South Africa

Been to Mercedes-Benz Umhlanga and the service was terrible The experience I had is that I have a Mercedes c180 edition C 2014 and I have been haveing issues like the seats peeling and the air vent trims coming off or away from the dash and they are refusing to sort this issues out. I would understand if we bought a lower brand off car but it's a Mercedes and to get this service is pathetic.