Misleading people

Spar shop in Voortrekker road , Goodwood , is advertising Yum Yum peanut spread for R54.99 for the 1kg tub. I went there on Sunday to buy 2 tubs , as this is a real bargain. There was only red tubs on the shelf , so I took it. I was , however , told that those is not on special , as it is the yellow tub that's on special. It nowhere states that it's only the yellow tub. Apparently they were out of stock , but they won't put up a sign to say that they are out of stock. This is really unacceptable and unprofessional service. They are misleading the public. I'm not going to buy from that shop again as you will have to make sure if you get the right special. I sent them a complaint on their site on Sunday , but got no feedback as yet. It seems they just ignore you hoping the problem will go away.