ChangeLESS

This was just unusual. I dont normally complain about things especially this puny but I think this was more a joke than actual poor service. I went to the cell C store with the intention to buy a nano sim card and perhaps also look at taking out a contract. I was asked for the R1 that it cost and I gave them a R20. The employee told me she does not have change. I was like ok, so what do you want me to do? She tells me again she does not have change and if i like i can come back quickly with change because the store was about to close. I said uhm...ok..ill be back, got in my car and left. This to me was just unprofessional. A store without change telling the customer to come back with change. I left because I was furious, but will probably go back tonight with my R1 change for my nano sim...LOL!!!