Bad treatment at Checkers Hyper Centurion

Today I went to Checkers Hyper in Centurion Mall. On my way out I saw lillies on sale for R40 each. I pi ked up 2 and went to the express till. I got told to go to the 2nd lady and while I was waiting to be assisted at the 2nd till they helped someone after me at the first till while I hadn't been assisted as yet. I then went to till 3 where I was told to go to till 4. At till 4 I told the cashier that the two plants I bought were R40 each on sale. She refused to assist me because only one of the plants had a red sticker and told me to get one with a red sticker. By then I was beyond cross! I didn't buy the plants and went and spoke to an Antoinette in the store office. I've never been so badly treated and I had already spent quite a bit of money in the store.