Bad Customer Service

I went to Spar Berea in the morning of the 26th of January to buy something to eat as i left the house & could not have breakfast. I got there took what i needed, went to the tills. I was turned away by 4 different tellers because they did not have change for R200 , i finally got to this lady who just told me straight she did not have change & she does not know why i came with so much money so early in the morning. The 26th is month end for God sake! can i really be turned away because they dont have change for a mere 200 The whole store? Their service has gone from bad to worse & i am sure it is because they have the mentality that they are serving foreigners, we arent all foreigners even if we were foreigners also deserve respect & good service. I have never been so disgusted in my life.