Via the MCR Twitter page, they are celebrating 20 million members and giving away a bunch of points and prizes.

Do you think you have the biggest stash of 12-pk codes? Show us & earn 10 bonus pts. Learn how:

Follow @MyCokeRewards on Twitter. Tweet a picture of your pile of 12-pack codes with hashtag #MCR20Million and earn 10 bonus points. Ends 3/9/13 at 5pm EST.

Limit 1 per member.