bad service

my husband n i always go to the Sasol to fill up petrol, however when we go inside to snacks, the cashiers are rude.e.g they throw your change at you.they take their time even if there is no queue you will wait for five minutes. at first I sused to let it slide. but today was the last straw, when my husband went to buy energade with 200.00 note and was rudely told that they don't hev change(really such a huge garage ,no change?)I mean there is always taxis there using loose count. my husband kept quiet and walked out.to rub salt in wound, they called him back , when he went back the cashier rudely sed\bring the money"imagine.I am very disappointed. its such people that make us prefer going to white neighborhood cos we buy the service not petrol or drinks. there is an engine garage @ Elias motswaledi"