McDonald's Wynberg, WHAT THE ****** HELL IS GOING ON???

This is MOST DEFINITELY NOT THE FIRST TIME, I'm complaining about McDonald's, Main Road, Wynberg, Cape Town, this morning, I went to said establishment for breakfast, my order number was 3257, & the price quoted before the total was about R20. 00 difference, why is this, & there is a short lady there that is 1 of your staff members, she doesn't wear a McDonald's uniform, she wears a black skirt with a grey vest, & she is full of you know what, who does she think she is, & after my struggling to order on the terminal, she eventually wanders off, & mumbling something in her language, I'M REALLY NOT IMPRESSED AT ALL BYE THIS & THE DISTINCT LACK OF "SERVICE", GRRRRRRR, how do I give McDonald's, Wynberg, less than zero stars???????