donsr:
if you didn't tell/ask the DM/GM about leaving, do so, so its in the PM....then? You let the admins know , if they have no followed up.
But you need to give the game's GM two weeks before rMailing the mods. On the RPoL homepage there is a link for 'rMail' on the top bar, once there hit 'Compose', check the box to 'To/CC Moderators, then let them know which game you've been waiting to be removed from and that it has been more than two weeks since you requested removal from the GM.
The mods are pretty prompt about it, but we are int he holiday season.