Couldn't activate this 'FREE' plugin

Looks great but once I installed and followed the instructions I saw that I wouldn’t be able to use it until I paid $5 to “activate” it. So I signed up for an account, verified my email, then couldn’t find the plugin so I could pay the $5?? There were two separate companies listed… SellScript and Codegrape. I even searched for the plugin by name but no luck. A little streamlining might be helpful and PLEASE don’t list it as free if you can’t activate it!