Utterly poor service

Firstly I’d like to say that the service I’ve received from Hyundai since the first time purchasing the vehicle has been nothing but utterly poor! In feb I took my wife’s car for service to the randburg dealership and we received poor service. I waited an hour and a half to get dropped off and wasn’t called when the car was ready for pick up. I decided to go there at 17:30 to get the car and I was told that they was a mix up, which didn’t make sense because I requested to be picked up. Today I decided to go to the Sandton branch to get a service quote and I waited 35min and wasn’t helped, I left and called them for this quote, bo one was available, left my details and an hour later I wasn’t helped. I called again and I was told I’d speak to the service manager, the phone rang unanswered and then it went back to the receptionist who then put the phone down on me. This is honestly ******* service from Hyundai as a brand and at this moment I want to sell this ******* of a vehicle because the after service is a headache.