Checkout Chatsworth unit 9

I went to checkout yesterday after many years.. I normally don't visit checkout because it is very unhygienic. However it was of convenience at the time. When I went to the store the security handed me a sale paper which was an A4 size.. I saw that they had Bokomo corn flakes on sale, 3 for R100..I went to pick a few. The corn flakes was advertised on the shelf with the sale signage as I looked to just make sure. When I went to the till, the cashier was very rude n she told me it's no longer on special.. I told her it says on the sale paper while stocks last. She had told me the stock finished yesterday and put new stock and the sale is over. I had informed her that the security just gave me this sale paper now and that it indicates sale on the shelf currently. She said "ya only yesterday " we called the manager and she was extremely rude, she said that we cant take it at the price n she said that the shelf doesn't say sale. I even went n looked again. However she was very rude and the store was falsely advertising.. the trolleys are not being sanitized,there are no wipes for the handles and the service is utterly poor. As professional people, we don't expect to be treated like animals.