Problem de-authorizing ID

I authorized a DRM ebook with my old ID adobe account. I'm trying to de-authorize the ID account but the only thing it de-authorizes it's the computer but not the ID.

When I de-authorize the computer and try to authorize it with my new account it doesn't let me putting me the error: e_lic_already_fulfilled_by_another_user.

How can I de-authorize the ID so I can authorize it with a new ID?

Thanks for your help