If I am not mistaking, Galata played on Saturday in their last league game, against Antalyaspor. That may be why the game was not available for Free DUP Sunday.
However, if a game is not chosen for a free contest and you really want to play it, you can choose to create your own contest and get others to join you there.

It is true that we had some minor issues with the points from the last match not showing all the time when choosing a team for a contest. We are working on that and,I think, we already have that fully resolved.