customers not right

I walked into the pick n pay in goodwood today to get a few things.when I got to the till point. I saw one of the products on the shelf for a low price . I wanted it immediately . I was told that it's not the correct price . I requested to see the manager(anele barnes).he then also in an abrupt manner told me that I'm not going to get it and that it is Merely because they are repacking that it is incorrect knowing that what a customer sees is what a customer should get .I told him that it should have been removed and he could not answer me.further more with out knowing that I was around.he went and discussed the situation on a casual note with a different shopper.which I feel is very unprofessional.