The Website Registration Does not Work and I cannot upgrade

The videos on the website look great and promising. However, when I try to upgrade, there is no link on the website to upgrade even when the plugin itself says you can. Also, I clicked on the verification link in my email and it says “Nothing Was Activated”, so this plugin is unusable at the moment since I don’t like free versions and I was willing to pay to upgrade. I need to get a different flipbook plugin now.