Do not answer calls or return customer calls

I called Hyundai Germiston on the13 Nov at approx 7h30am to make an appointment for my car to be serviced. After numerous attempts, my call was eventually answered by a lady from car parts who informed me that the servicing department was accepting cars for servicing and therefore unable to take calls... Fine, she asked for all my details and promised to get someone to call me as I wanted the cash price since my car is out of service plan. No one got back to me the entire morning. I then called back in the afternoon and was assisted by Prelen. I requested to speak to the manager to which I was told he was in a meeting. I asked him to get the manager to call me back. Today is the 25th Nov I have still not received a call from the manager. Just very disappointed with Hyundai Germiston