Bad Attitude From Your Cashier Adelaide

I just experience a bad service from one of the Spar cashier (Adelaide) at Soshanguve Crossing. I went to buy bread and Simba chips with a R50.00 note and my items total to R34.40 and i asked for a lose change. Adelaide gave me 2 Five rands and R2.49 change and i said to her can you please make it lose even if you can break 1 R5 and make 2 two rands and she said the change she gave me is suitable. I asked her how can you say it is suitable whereas i requested you to break it lose with at least a lose change of R2? She just closed the till and tells me to take my change. I then asked for her senior and the old lady came i think she said her name is Sylvia and she assists me. I will ask that you talk to your stuff about customer service as i am the regular client in your store and i cannot tolerate this kind of behavior from your stuff members. I will appreciate if you can provide me with feedback in this matter.