Hi, I am trying to join my company's organization, I was told that if I create my account on pulumi via my github oauth, I would automatically be added to the org on pulumi. That did not happen. At the moment my teammates who know about this are unavailable, so I am investigating while I wait.

I don't believe that it's automatic. It can be set up that way, but if your org admins haven't set it up that way, then you'll have to wait for an invitation.