I have two copies, but a few days ago I downloaded one last time for good measure using the link in the email they sent.
When downloading everything (horrible speed, btw), everything worked fine except the add-on packs - it threw an error about needing some file and the download failed. Pretty odd, since it's just the offline download.
Tried those separately, and it still failed.
I logged in and everything was showing up - the add-ons downloaded fine from there.
...then I double checked to make sure I pulled all the files in my account.