False advertising on products

I purchased hair products at one of your outlets, shampoo and conditioner. The Hask brand, it clearly indicates on the bottles that it is sulphate free which is why I purchased it, as I used a brazilian treatment on my hair I can only use sulphate free products. I used the shampoo and conditioner for 4 washes and found that with each wash my hair became dry and by the 4th wash my Brazilian was completely out. I read the ingredients on the shampoo bottle and found that it contains \olefin sulfonate\" which is just another form of sulphate. Thus, the Hask products are falsely advertising on their products and so is Clicks. A Brazilian treatment costs almost R1000, this is my money wasted due to this Hask product. I want a refund on the Hask products I purchased, this false advertising is unexceptable!"