I've been.. banned?

I went to register over at the Vamp3D forums, managed to get through nine tenths of the registration process and was told "the Administrator has banned your email address. Please contact the administrator here". I clicked the link and ofcourse was told I'm not logged in. Did I do something wrong? I'm unaware of it if I did. I'm pretty sure I didn't, at the least not intentionally.

Thanks for looking into this.