Disgusting customer service ever

I have experienced disgusting customer service ever at Dischem Tzaneen, i bought Lifestyle black cumin oil but the pricing was wrong because at the shelf was R26.95 but when i get to the till it scanned R83.95, when i try to explain the wrong pricing the consultant without her name badge told me that the price is at the wrong product so she cannot change the price and she took the price an left me waiting, she didn't even bother herself by apologizing or show some remorse, im not happy at all they must atleast show that it was a mistake that was done, according to the way she treated me is like she knows that there is nothing i can do, is up to me if i want to buy it or leave it, but because i wanted it i bought it with a big sorrow in my heart.