Hi, I accidentally synced my AnkiDroid app in the wrong direction, which replaced my AnkiWeb collection with an outdated version. I had recently created a lot of new flashcards using AnkiWeb on a computer lab PC, so I cant backup from there and now all of that work is gone. I understand AnkiWeb may keep server-side backups — is there any way my account can be restored to the state it was in before the sync? I’d really appreciate any help recovering my lost data. 
Thank you!
What about your other device? Did that already have those new AnkiWeb additions synced?
Even if you’ve been syncing regularly with AnkiWeb, backups are only made periodically, so there may not have been one that captured those new additions. How long ago did you “recently” make those additions in AnkiWeb?