Black ppl dnt tip

Tonight we went to Mythos Restaurant with my husband,a lady with dreadlocks n blue head band was serving us dnt know her name as she never introduced herself..After giving us our meal she dissappeared never came to check if w ok,for my husband to get a second drink he had to ask another waiter n for the bill as well w had to ask someone else to call her, bt w looked passed that, even wanted dessert bt never got to order cause she never came to ask if we wanted anything else, n we still looked passed all of that n the cold food that was served to us that i asked the lady to go n warm again w were still polite abt everything..wat got to me is the comment she made wen she was talking to another collegue abt us that \black ppl dnt tip "referring to us n pointing at us..After such bad service how much tip did she expect?? W spent over R600 n we gave her R20 n only cause w were trying to b nice..she didn't deserve it...maybe the reason black ppl dnt tip is cause of the bad service they receive which is different from the service given to white ppl..dissappointed n disgusted by this comment n wnt return to the restaurant wnt even recommend it to anyone else"""