hansuhans: im waiting over 4 days so im slowly loosing patience
Does the stamp collecting graphic show "ALL STAMPS COLLECTED We'll email you the gift soon"?
I've waited for over two days myself, but four seems a bit long. You could send a support ticket, but they probably won't look into this any further until all keys are sent. They're a bombed with questions about this atm. I'd wait till the last day of the sale and then send a ticket before it ends, so later nobody can say you just missed it.
Btw, there are tons of codes given away right now in the forum. Why not grabbing one and gift yours as well once it arrives.