Bad Service

I arrive at the store at around 17h55 on Sunday, 31st May 2015. The cashier on the counter named Syethemba was on duty and she was busy with her manager doing some counting I assume and I asked to buy some food she rep**** by saying she will be with me I must wait for her to finish. I insisted on being helped but she was insisted that she finish what she was doing. Anyway, I ordered 3 Kids burgers + chips and a King Steer burger + chips, my till slip indicated a time of 17h59. I left to Pik n Pay store in the Mall which took me about 20 minutes plus and returned to pick-up my order only to find out that it was not ready with chips not even fried as yet. I asked about the order and the cashier (Syethemba) turned her back on me and carried on with what she was doing and without at least telling me what is the reason for my order not done over and above that she was rude on answering and attending to me. I ended up cancelling the order as I feel my money was not required.