OK, they do have a term about using your win/details on their site and scrolling winner window if there is a noteworthy win, as do all casinos but it mentions nothing about you disclosing a win, BUT:
13.4
The contents and structure of BETSSON´s Website pages are subject to copyright © and database right in the name of BML Group Ltd. All rights reserved. The copyright in this Website including all text, graphics, code, files and links belongs to BETSSON and the site may not be reproduced, transmitted or stored in whole or in part without our written consent. Your registration and use of our system does therefore not confer any rights whatsoever to the intellectual property contained in our system.
13.5.
Links to the Website and any of the pages therein may not be included in any other website without the prior written consent of BETSSON.I'm sure Patryk will OK the screenie but be safe - ask first.