Should we only buy with R10.00 notes?

I wanted to buy a hot wing snack but only had a R200.00 note on me. The cashier complained about me buying something so cheap with a R200.00 note. She took my money anyway, but with attitude. I could see she was annoyed. I asked for a buddy coke but she did not even punch that in. She probably didn't hear me, but that is only because she didn't want to. <br> Very disappointed because the previous time I went there, another cashier gave me very good service.