Bad treatment

I've never felt so belittled and embarrassed in my life, I went to McDonald's Lyttelton shopping center to ask for a toilet and a lady by the name Mokhetjwa insisted that I buy first before i could use it, of which I agreed to do but she kept on saying " you customers are the same" . I was surprised because while we were busy talking, a white gentleman wearing a red t-shirt from Apteek pharmacy just walked in and used the toilet and left without being told to buy something first. The fun part is I always buy my coffee and burger at McDonald's whenever I'm around Lyttleton but now I will no longer go there.