Changing R200 note for a **** note

I'm sad and really disappointed by the service I received at the Carltex Edenvale, Van Riebeeck rd next to KFC. I stay next door to the gas station and fill up my car there all the time without any issues, but this morning 7 December 2015 at about 07h00 I went to buy airtime, firstly it was the machine out of line or something like that and that meant waiting which I didn't mind, but my biggest problem is when the till attended offered to give me \change"while we waiting for the machine to work then gave the R200 note to her colleague just to switch it and said I gave them a **** one. Now what's really upsetting is that the guy who seemed to be in-charge had attitude when complaining and waisted my time however"