For the Menag, you have to play throught the entire Forsaken quest line (including the first Dreaming city mission) as well as the quest line Calus' robot gives you; up to fixing and placing a rune in the chalice. This has to be done on EVERY character that wants acces to the Menag/Raid.
You need to be 680 for T3 reckoning, and 690 for the Menagerie. From your profile, I see that you are 669. You should have received a bunch of 690 gear when you completed the Invitation quest from Benedict.