Hey Balrog,
Did you already have the trial installed for Cubixx HD before the giveaway?
If so, uninstall it and try your code again. If not, then message Laughing_Jackal and we'll try to sort you out. :)
Hey onmode-ky! YES I get tired at midnight. I am like a gremlin like that. Plus a 2yo kid gets up EARLY. :D