My Coke Rewards FREE 20 oz sparkler just for logging on!!!!

HERE! I just logged in to enter in some codes and they rewarded me with a free 20 oz sparkler just for logging on YEAH!!!! Here's what they emailed me:
 
Lynne,
Congratulations on choosing your reward. This email is a receipt which confirms that you redeemed 0 points for : Free 20 oz Sparkling coupon (valid for this log-in session ONLY) .
You will receive your reward within the next 4-6 weeks, but between now and then you can check the status of your rewards anytime. Just log in, click on "My Account" and choose the "Rewards/Prizes Status" tab.