I hope you get it, but a couple of us have been burned on the timing of the month rollover before. If we can get a confirmation on the time, it should probably be added to the FAQ in the first post.
Q: When does a Rewards month end?
A: Either midnight GMT or UTC, which is 7pm or 8pm Eastern time. To take advantage of a monthly offer, try to make your purchases before 6pm Eastern on the last of the month.
Looks like the September promo has been posted on their FAQ
, though the main page hasn't updated yet.
During the month of September, use any sports app for 10 hours or more and earn 100 Microsoft Points. App must be used between September 1, 2012 and September 30, 2012. To check if an item qualifies for this offer, please make a new post in our support forums.
Part of me was actually hoping for an avatar related promo, because I'd really like the Fall of Cybertron Grimlock and Laserbeak pets. But I should be able to qualify for September with MLB.tv.