It was me. I activated the promotion, but haven't bought a single book yet. Promotion credit expires 21 days after activation.

I've bought one so far. I don't know where to start!

I just found my promotion offer in my email. Thanks for mentioning this... I think. lol I've been really lazy about going through my email lately and probably would have missed it. Looks like I've got the spend $60 to get $40 of e-book credit. And it needs to be done by October 29?! I have only 5 days to figure out how to spend $60 worth for books? Ack!