Lang's Twitter account is here, which is probably the best way to get clarification on stuff like this, but for the record, he retweeted this a while ago, which, if I'm not mistaken, should mean you get your code on here later this week from @epicsteve.
Give it a little time. We rag on Lang here for fun, but when you're a businessman like him, it's especially bad business to do false advertising for charity-related things and large scale gift fulfillment often just takes time in general. I'd say give it until the end of the week and then if you still don't hear anything, go bug those two, but I really doubt it'll come to that. :)