Appualling service

On Friday I took my kids for breakfast at the lone wolf spur in randpark ridge Johannesburg. I was treated so badly by the waitress . She took our order and it took 30 minutes for the food to arrive and she was nowhere in site while waiting on the food, when our meals arrived I asked why it took so long she shouted at me told me the sausage took long then she rushed away. My plate was hot the food was ice cold. There were eggshells on top of my egg. I turned around to call her and she was gone. I waited a couple of minutes for her to reappear and she did not. I went and looked for the manager and the manager replace my food for me. The waitress resurfaced and came to the table told me that she is always around and she will pay for my food. I told her I wasn't there for free food but she shouted over me and spoke to me like a child. I was so appalled by her behaviour I asked to not deal with her anymore, we always have good service at this spur before but after what happened last Friday I will go elsewhere. I was told management would call me, I guess they just said that out of sheer formality, the service in this country is going down the toilet. I even left that rude girl her tip but who cares I am just one customer they don't care about loosing