Bad attitude

Purchased some chips from PNP in Bellville. Three bags for R36. When I got to the till, it was R39,47. I was OK with that, as it was still a good price. Something I like about PNP. I asked to draw R300 and was given R100. When I asked the cashier. I received a loud response of I said R100 and "she does not have R300 in her draw anyway". Lovely customer service from Ntombikayi. I'm terribly dissapointed by this.