Misleading in their advertising

I am incredibly disappointed with this supplier. They initially advertised Audi A6 C6 headlights for R1527.07 (equivalent to $84.83), which included freight. However, upon inquiring if this price was for a set or a single light, they suddenly changed the price to $546, excluding freight. Now, they claim that the $84.83 is just a deposit, which was not mentioned anywhere in their adverti*****t. This experience has led me to believe that this supplier is misleading in their advertising. Beware of this potential ****.