Samsung false advertising

I was sent a targeted email by Samsung on Thursday 13th April offering an Easter deal on a Samsung 65” TV called The Frame for R24,999 (R8,000 discount) and the offer expired on Sunday 16th. I clicked on the BUY NOW box and it took me to the Samsung website, where the offer was outlined. When I tried to transact, the price was R32,999 and that was the price loaded in my cart. There was NO MENTION OF THE REDUCED PRICE. I immediately went into a chat mode with Support who acknowledged the problem and said he would escalate it and gave me a reference number. I also send numerous emails to Samsung stating this was false advertising! Again, on Monday I called the support line (they do not open on weekends) and again was given a reference number. I have jus5 had a call from a gentleman named Stephen who has said the offer had expired and there was nothing Samsung could do and they were closing the case. He could not explain why I had bothered to write numerous emails on Saturday and was not interested in my explanation. He suggested the error was on my PC!!! Such shocking service from such a well known brand! I am bitterly disappointed in the response to what is clearly FALSE ADVERTISING!