Worst service from the manager JAN himself

Eagle rock spur: Jan from this spur at Mall@55 Centurion is one person I don't want to come into contact with ever in my life. I don't know if it's the colour of my skin that disadvantaged me and made me so unlucky but the attitude in this man. I'm always at their spur since it's close by. I call him and say (with a smile) "may I kindly ask for a free sauce (worth R20 with the Monday special) with my meal since it doesn't come with one, just as a courtesy of being a loyal customer to ur spur (jokingly)". By the way when he came to me he says "I hear you have a silly question to ask". I laughed thinking he knows what I want and would agree, instead I explained to him my request (without expecting a yes answer, then he said, I quote "are you saying I must go around giving ppl free sauces?" I said no I was just asking as your loyal customer. He again said "if I give you, I must give the whole spur, and that's not how I run a business". Again I said, it's not a must, I was just asking nicely and if it's not possible then I understand. Then he said no mam with the most rudest and arrogant tone. I never felt so embarrassed in my life. The waiters were even scared to call him when I asked them to call him so I could ask him. You could see they fear him and from their eyes you can tell they work under the most meanest person. I've never been this traumatised by a restaurant that I support more than any. It was not even about not affording the sauce, cus I even paid the waiter a good tip. This restaurant is even new for that matter to be treating its customers like that. See me a that spur again, kill me. Jan is not one I would want to be conversing with in any restaurant setting.