3D FlipBook - Plugin for wordpress

Hello I buy the pro version for the wordpress, and after that I download the plugin, and installed it, but there stay: This is the light version. To get more functionality use the pro version. It has custom control settings (keys binding, disabling the control buttons, ...), skins and much more. There is not logo. Before starting watch the video or read the user manual.

How can I get the PRO version for which I already paid