Recover data from deleted account

Noticed that IMDB no longer supports FB login since 6th of October.  – So today I couldn't access my user from the computer anymore, only from the mobile app.

When I tried to log in with my email that was connected to FB, my watchlists were no longer available. So I decided to delete my "empty" imdb account and tried log in again with email. Turns out my empty account was somehow related to the account that was linked with Facebook, so I accidentally deleted all my data that I had gathered for years... Many watchlists and thousands of movie ratings.

Can I somehow recover anything? I have a csv file with an old watchlist, but imdb doesn't seem to have an import function, or is it possible? If I can’t recover anything at least can I import CSV files?