WTF? Season 3 is still there and available to re-download, but seasons 1 & 2 are gone. Any idea what happened?
They do show up on mine. Check again, and if they're still missing, write email@example.com.
As WarpSpeed said, I would recommend contacting Telltale Support. I am only a volunteer Community Moderator and I am unable to assist you myself, but Telltale Support should be able to help you.
For assistance with your problem, feel free to consult the Telltale Support Center. From there, you can search for the solution to your problem depending on which Telltale series you are playing as well as the platform you are playing on.
If you still need further assistance, you may also try the following: