Disappointed by poor service delivery

We always shop at Hillary Spar, but this Sunday we went to withdraw some cash from the teller and therefore had to purchase few items. After waiting at our cashier's till for about 6 minutes, we were told there's no cash at her till so we were moved to another till (no.2) Where we had to wait behind the cashier as there was a customer already at the till. Cashier 2 saw us waiting and when the customer had finished we reminded her that we were still waiting to which she rep**** that we needed to follow the queue and we reminded her that we were sent to her from another till where we also waited for while (and our previous casher did mention to her that we were coming to her). she insisted that we join the queue all over again and that she can't assist us. We left the items behind exited the shop. The casher at till 2 was rude and arrogant and never once understood that we were waiting for over 10 minutes in total.