Melhor.co.za false advertising

Placed an order for 12x Arko shaving soap sticks (as per adverti*****t) on the the 7'th of November. There were other deals on the same soap as well - 1 piece, 3 pieces and 6 pieces respectively. 1 Box = 900g (12 x 75g pieces). I received the parcel yesterday with one piece of soap. The price was R261 plus R100 shipping. They are arguing that I ordered only 1 piece of soap and the web page with the Arko shaving sticks has conveniently been removed.