Disgusting McDonald's employee's behavior

I live in the Johannesburg Cbd and have bought so many times at this particular restaurant cnr Rissik and Prichard Street. Yesterday I was there around 2pm to buy something and because the service was so slow I went over tho the one employee and asked to use the toilet at that point I was so pressed she rudely told me to buy first. I then went to another girl and asked to use the toilet she pointed me to her supervisor I think her name is Lerato she told me to buy first as I told her I'm really pressed I'll even let her hold my phone then I'll buy after she said NO. So I turned to the one lady asked to quickly buy a ****in at the Mc Cafe in store she told me that she's busy so I walked out without using the toilet and without buying anything . I can't believe that McDonald's workers don't have a sense of Ubuntu or sense of emergency especially if they could all see I really needed to use the toilet and I was not there just for the toilet nor was I there to de***** or waste their resources. Another thing is that they allow begged into their store as you are eating the ask for money and the food that is on your plate.