you took the ponzi scheme and applied it to marketing. That's glorious. I am starting to believe what I once read about the brightest minds of our era being too busy trying to devise new effective ways to make us click on the ads.
You should change your table for free/pro/enterprise so entries about the same thing are in the same row, e.g. "100 emails per contest" should be in the same row as "Unlimited emails per contest".