So i realized that pretty much every gog arma game has the same cd key, which prevents me from playing with my mates on lan or internet, most of the times i've been banned on some servers but i resolved this with the admins because they already know about the GOG arma issue.

Is there any way i can demand either a new cd key or a refund? This is really annoying.

Thanks

https://secure.gog.com/support/support_view/multiplayer_issue_cd_key

Thanks , i found that a while ago but i didnt see unti now the "I can't find solution for my problem" button :)

Yeah, they really should make that more prominent.