Im afraid everyone is right. The only way she can get in is on a 14 day tourist visa and she has to be booked into the hotel too. (maybe the hotel will waive this for a fee ;) ). As DG said, marrying her is the only solution. That way you can sponsor her. Marriage is straightforward in the sharia court. It takes an hour or so (as long as u have all the relevant paperwork) and if youre worried about it, it has no legality in the uk or poland (unless u have it attested in those embassies)