Wordbooker: authorization problem

I want to install Wordbooker on my fan page. But I have two different fan pages. In the “user level customisation” I have selected the right fan page, which is “greenevelien”. In the “status”-field there is also a link to this fan page “greenevelien”. But when I click on the “facebook”-button to give authorization to publish, my other fan page is selected “milieu ethiek”.
How can this be? I have selected “greenevelien”!