Title deletion

Hi there

I tried to delete the title tt1349628.

This movie announced, and then never shot (see here: https://gentedirispetto.club/t/database-dei-progetti-mai-realizzati-in-italia/36391/48 title no. 25). No such title can be found in any Italian film database (the Italian Ministry of Culture archive, the Commission for Film Classification database, the ANICA archive, or the Gremese Dictionary of Italian Films). There is no record of the movie being released abroad, and its IMDb page has no release date.

My correction was rejected.

Is there anything else I can do to prove that this movie never existed?

Thanks for the help.