An Extra gave themselves credit as a Cast actor on my film.

I have requested twice that someone be relisted as Extra Uncredited or be completely removed from my film as extras are mostly uncredited. It is completely a violation to credit yourself as an actor when you were infact not an actor on a project. It could also get our film in trouble with SAG AFTRA for not listing him etc. How do I get someone to pay attention and make the change or delete the entry???