Game Reverts Back to Play & Won't Launch

The act of launching any game title is handled by the team for that game, not Bnet. You can even see an example of this explanation regarding CoD in the sticky threads.

Finally, this forum is only player-to-player troubleshooting. Discussing your subscription or blanket statements about “fixing” something aren’t helpful. There are no staff in any of the tech support forums anymore.

If you want to troubleshoot issues launching WoW, chat with players in the WoW TS forum.