Misleading customers with false advertising

Hellopeter

I have a very serious concern about Jet stores they mislead customers in regards of they adverti*****ts, Today I went to buy Girls set that I saw in the store for R129 however I was told that it's not a set but it's separate but it's not what I saw on the product list now I had to pay for what I did not see, can you kindly tell me what to do.