Products not living up to promises

I recently bought \guaranteed"products at Obey Your Body in Menlyn Pretoria. I had 5 dark spots on my face & was told that it can be reversed. I purchased some & used it for 2 months as was instructed by 2 of their Cosmetologists. After the 1st month I noticed that there were more spots coming out. I also attended their recommended facials. After 2 months I found more acute dark spots all over my forehead. I stopped using the products and facials"