Poor customer service / customer liaison

I have really been receiving poor communication and promises that are not honoured from Autoworks Brackenfell. I left my car at the workshop last week Friday 13 Dec. The car did not start so it needed a diagnosis first then fix, then service. I was told they were gonna call me to inform me of the issue, I was never called. I passed there on my way home after work and I was given feedback that they are still trying to diagnose the car and I was gonna be called Tuesday (Monday being a PH). I was never called on Tuesday and, again, I passed there on my way home after work and was told that the car was diagnosed and a quote was gonna be sent to me by the admin lady. Indeed, when I got home about 30 min later the lady called and promised to send me a quotation first thing Wednesday morning as she got the report from the technician. I waited the whole morning, no quotation so I made a follow-up call and got through the central office. The guy took my details and said he was gonna get back to me after following up, the call did not come. I called again early afternoon to follow up on the quotation and the central office put me through to the Brackenfell office and the lady said she was gonna get back to be with the quotation after speaking with the branch manager, the call never came. End of Wednesday and my car was sitting there idling (at least from my point of view) with no quotation even though they said the diagnosis was done on Tuesday and promised to sent it. In fact, it seems as if there would not have been any communication whatsoever had I not done any of the follow-ups and it's almost a week now. I feel like I'm given zero priority at this moment, that my business is of no importance to Autoworks Brackenfell. Very frustrating, and I would have taken the car somewhere else had I known this.