Col'caccio Cavendish Square Cape Town- Great Pizza yet rude and disrespecting Waitress

Let me be Honest Col'cacchio is my favorite Italian Pizzeria restaurants in Cape Town. However, in one branch (Cavendish Square, Claremont, Cape Town) the waitress (the ladies) are not professional. There is an obvious difference in customer service based on skin color. Besides my observation have also heard from few other customers on this issue. For this reason I have avoided this branch after three repeated incidence of bad service. As top google local guide i advise on the management to focus on this issue. And customers need to be wary of this place.