False Advertising

I don't know if maybe I don't understand what variety means because last week Monday I bought 2 plain yogurts from Checkers Noordepark for the special price of R46 but at Checkers Wonderpark it was said that plain yogurt is not on special but it's the same leaflet and the same price, today another yogurt special but Checkers Wonderpark doesn't adhere to the prices on the leaflets. A lady by the name of Johanna assisted me, but I just didn't understand and she went to a lady called Faith who is an admin manager, who doesn't know how to treat clients at all and still my problem with price wasn't solved, I had to leave both the yogurts and go back to work. My query to Checkers is that, when the leaflets says 2 variant 1kg Nutriday yogurts for R46, does this have a hidden exclusion that we as clients know nothing about?