Did not get a 50% off coupon

I've had Demigod preordered since December 08, so I thought I would be entitled to the 50% off code too. But I never got an email from Stardock giving me one. I have 4 friends wanting to buy Demigod and it would be nice if one could get it at 1/2 price. Am I even entitled to a code, or did I preorder it too early or somthing like that?

Since the sale ends today I guess I need to find out soon