False Advertising

Telkom advertised a Samsung Tab 4 for R229 pm valid until 20/01/2015. I app**** on 19/01/2015 and was informed that I can collect the item on 20/01/2015. On arrival I was informed that the product is now R259pm but can contact their call center on 081180 to get the original advertised price as it was still valid but the stores pricing codes have unfortunately already changed. Telkom refuses to honor the deal as they claim that I was informed of the price change when I collected the item. I believe this is ********* and immoral from them to advertise and then change their pricing ahead of the deal expiration.