False advertising on Online store

I recently purchased sanding belts from Habitat Potch online. I used WhatsApp to confirm the price before placing my online order for that item and other goods totaling R828. Immediately after receiving my order,  I received a informing me that the items were out of stock.   I have now realized that the price had been misrepresented in the adverti*****t; it should have been for 1 unit, not 10 pieces. I should report issues like these to the National Consumer Commission or the Advertising Regulatory Board.