NO CPA - price you see is not the price you will pay

i was at Maponya Mall. i saw an article for R1649. i wanted to purchase it but their system was offline after a while it came back on. when they try again to scan it, it gave them an error (according to Angel the cashier). i told them they have to sort out the product code error but i am not willing to leave the store without that product. Angel tried to call her managers but no luck. i waited for an hour to get help but still nothing. after an hour i left my numbers and email asking them to call me back and place a complain on hellopeter. Yesterday i received a call from Dennis ( regional manager) he told me they placed a wrong price on the product, which has nothing to do with me and Angel said nothing about the price to me but the product code and i have asked him to send me a mail saying they wont honor the price i saw . today i received a from Lebo/Lerato site manager, she said that product was on 50% off December and they forgot to remove the price on the product but still they cant give it to me. i told her CPA clearly states that they must give me the product with the price i saw. is not a wrong price but WAS PRICE that they forgot to remove. i have managed departments in one of the biggest retail in the world and i know the price i saw is the price i must get, especially if the price was the price of that product at some point they just forgot to remove it.