Spar deceives customers

Went to spar at Park Square in Umhlanga on Saturday 02/03/19. On the shelf, there were boxes of Beacon marshmallow Easter eggs marked for R69. 99. I took a box and went to the till and when the cashier scanned the code, it came up as R79. 99. I showed her the price tag of R69. 99 at which point she consulted with another cashier named ****ha who says "Tell him the price changed", despite me being close enough to hear and be addressed directly by her. I didn't take the item. After paying for my other items, I went back to the shelf, only to see that all the boxes are marked R69, 99. I took a picture of this which I will post on social media. I queried with one of the floor staff and she advised that she did not know of any price change. I asked for a manager and she just stood there. I decided not to take it further in the store, as the staff and management of this store obviously don't care about how they treat their customers and I did not want to waste any more time.