I might suggest reading the saga of Nissan Computer Corporation:
http://www.nissan.com
http://www.nissan.com/Digest/The_Story.php
If playunited.eu & co.uk are your sites, you’re not at all letting people know that they are not on a Play United company page (in fact, you’re effectively acting as if they ARE). . . That aspect could get you in some serious trouble, and probably give them a lot of leverage in court.
Good luck, hope you get justly compensated for your efforts.