A chance?!? It was a public announcement!!!
And it clearly stated that all round 3 competitors would have received a copy of the game!
I do not know what laws are in use all over the world,
but I suppose that if you promise something in a contest you should do it!
Otherwise, all people could organize competitions promising a slice of moon!!!
Moreover, I don't care about the game very much, but I want my certificates (and my T-Shirts) and AN OFFICIAL ANSWER!!!