False adverti*****t. Consumer protection act not practice. Poor management

I'm writing this with lots of dissatisfaction and disappointment with the level of management in your Fila store at Fairlands. After receiving the black Friday SMS yesterday I finally decided to visit your store. I needed secret socks and the Rest I was going to find there. I picked 2 pairs tagged R99.99 and as i paid i was told is R129.99. Nearby is saw 3 pairs it was tagged 149.99. I thought let me rather take that one. It's price also changed to R179.99. I asked the teller to call the manager. Manager upon arrival she came with attitude of note. I asked her to explain what's happening with the false price tags. Sge said to me the price applies when you buy for 2 and it becomes R249.99. and when buying for one it's original price which is only on the screen that she refused to show me. If u add 149.99*2 you get 299.99 and I understood that paying R249.99 was a discount which is nice but I wasn't interested in having 6pairs of socks i needed only 3. That's why I didn't mind paying original price of R149.99 as per price tag. She kept on insisting that i pay R179.99. the way she was furious you'd swear she had person interest in the extra charge. Customer service is bad in this store, consumers are taken for a ride. False adverti*****t is a challenge again. I feel sorry for people that are bulk buying because one might miss this if not paying attention. M hoping someone senior will attend to this query. And m still in need of those socks.