Misleading advertising

Spar Melville is busy with misleading adverts on their products. Today i just lost it there when i bought milk advertized with big letter R94,99 at the till they charged R113,99 for it. then after i told them about their **** they told me only clubcard members pay that amount. They are ripping the public off because they know that only a few people will have those cards. Spar does not display the higher price ,