Will not shop at President Hyper again

At President Hyper is it not the pize you see is the prize you pay. It is a coding to the rude manager the consumers responsibility to check the item towards the prize, description and barcode. I took a Toystorie 2 toy on the helf with the prize of R179. 99. Their as about 15 of the same toys on the shelf. At the till they rang it for R599. 99. I oustoned it and a employee went to the shelf with me and found only the R179. 99 tag on the shelf. The cashier and supervisor de ided that it is my fail and then the manager came and told me that it doesn't help to even rgu with him because it is the consumers responsibility to check every items barcode, description and prize. No apology. When I said I will post it on social media the attitude was"please yourself.