Worst service ever

Good day, can yo please address the customer experience at this newly opened branch as a lady employee at the branch was extremely rude to me and my friends and pasted suome racial comments on the fact that as an black south African we like to complain about every thing. Where as our argument was that we should be paying the full price for a mc feast deluxe meal without its full content since they where not available. We were further told by this individual that even if I go any of their surrounding chains in that area they would make money off us regardless. Which I don't think is my business 4 someone to rub that on my face. Please address this as I don't believe this was professional. I believe the lady is management. This happened between 28/03/2015 11pm to 12am 29/03/2015