You have paid your SEO "Expert" to optimize your site and it has been 30 days without any results. Ok, it's not an exact science, there's some factors beyond their control. 60 days out, and you have not seen any real results. You get some explanation- it may make sense, and it may sound like b.s. You begin to wonder. 90 days and no significant changes? Run. Cut your losses and find a reputable provider of search engine optimization.