Enjoy up to 8 games a month! Choose the games you want to watch live and on-demand.
To sign up -
1) Go to the Watch NBA League Pass page
2) Click the monthly game choice option, and enter the promo code "NBAMELB"
3) Complete sign up
4) Go to the game you want to watch, click apply credit and enjoy the game
EDIT: Sorry guys not sure why it has been expired, the thing i got given was http://imgur.com/ibpUdvi which was generic. Might be able to get a free month if you contact support and tell them that it has expired early.
Also just a guess, but thinking it might not work since League Pass currently has a free trial for the next 2 days, and the system can't discount it when it is set to $0.00, rather than the standard $13.99. I will remove the expired tag this if it works then.