Did not receive what was advised and purchased

Very bad experience. I've purchased Bernini Amber Sparkling G**** Frizzante cans 24x 440ml which was advertised for R99. 99 and when I received my order it was just a 6x 440ml. I called the call centre and they basically just said it was an error and I have to go in store to return the product. I have to give out transport money to go all the way to return the product. It was an error on your side why didn't anyone call when the order was processed to inform the customer that it was a error I wouldn't have bought the stuff is it was not on special I must now go through all the effort to return this product cause I did get what purchased and what was advertised. I have to take two taxi's to get to a checkers to return this and get my money back. I thought I'll make use of your service cause it suppose to be convenient but you've just cause a lot of inconvenience