I have purchased 10 prweb.com PREMIUM press releases and I will be using this on one specific site where it is already established, but I'm struggling to gain top stop on the search engines for the specific keywords. Obviously, I have chosen the best package, each press release costs $1500 EACH. Have i made a mistake? Will these press release's help my site higher in the rankings? - It will get good backlinks from high authority websites so I'm guessing so? PRWEB will be writing each release. So the quality of each release should be good.