There are two type of SEO 1. On Page SEO 2. Off page SEO On page SEO worked of meta tag, title tag etc. It is specially seen on page factor of your index page, set your keyword rankings. and off page words in the web page URL, title tags, meta tags, headlines, sub headlines, keyword density, words s...

Most SEO services are a scam. I'm unfamiliar with the one you chose, but you are best to pick up a book or Google "how to get ranked higher in Google" if you want more traffic.