horrible behaviour by cashier . Capegate

I went to kfc capegate to buy streetwise 2. The cashier didn't even bother to greet me for which I didn't mind. I went on to oerder my meal which was R27.90 then she went on to give me change in 50 cent coins.I told her I wanted proper/decent change but she refused and said she doesn't have it we argued till I sc***** my wallet only to find a loose R30 rand. This seemed to have upset her to the extent of calling me 'boring' to her colleague. She took back her coins but did not return my change again. I went on to ask for my change and she just threw it over the counter gave me my meal and I walked out.I am a regular at other kfc's but I will never set foot in capegate kfc again.