No customer service

My husband and I went to the store to do our normal grocery shopping. everything was fine until we had to pay. the store was literally 20-25 minutes to closing time. As we were paying for our groceries, my husband asked the lady at the till for a carton of cigarettes and her response was that the store had closed and they cannot take anything from the kiosk. When we looked at the kiosk, there were still people paying and I mentioned that to her, she got irritated and just ignored us. my husband walked to the kiosk to ask for a carton and the lady behind the counter said that they are not allowed to give stock to customers if they are paying at the till, so he walked back and told the lady what the other lady at the kiosk had said. The humble older lady who was helping with the packing walked back to the kiosk for the cigarettes and when she came back, she said the lady at the kiosk said that we had to come to the kiosk and pay for the cigarettes as a separate transaction as she was late and leaving to catch her taxi, by that time we had taken stock of all out purchases and were ready to pay at the till. that was 10 minutes before 5pm. so we left without our cigarettes and ****ed!