Product shown as being on special, actually arent

This afternoon I went shopping at our local Spar In Meyerton. On the shelf I saw the special on Poolbrite 5in 1 for R69.99. The notice show the price is valid until 06/03/2016. At the pay point the price was not as the special notice shown on the shelf. I was told by the supervisor that the special was only for the previous week. But the notice show the special is valid till 06/03/2016. I went back and took the notice to the store owner Mr Costa and insisted that I get the product for the advertised price. He wanted to show me printed papers of why it is not on special. As I mentioned to him when I come shop in the store I surely do not have his list, I only have the detail displayed to me on the shelf. This is really disappointing how the matter was handled. For that matter I will never shop in that store again and also spread the word to as many people as possible. <br> <br> This kind of treatment is a disgrace.