Prices for sale items

Still waiting for their response about wasting my time. Due to the cashier that doesn't know when the price drops for their products. I bought huggies x2 for R300 and TV wall mount for R229. But they charged the normal price Where's it's was both on sale. I happened on the 2 July 2023, still waiting for their response. They wasted my time. To spend more than 30 minutes and i was the one they asked my to go and pick the prices for proof. I wasn't happy at all with their bad service