This plugin is not as easy as advertised

Besides the fact that once I spend hours getting one thing to work, something doesn't work at the next step, this plugin is very difficult to work with.

My specific problem here is that the cancel/upgrade/change subscription buttons do not work. I can register, but once I'm signed up for a membership level, I can't cancel or upgrade from within the website as a user.

http://www.gomeetgrow.com