Despite confirmation from the film's director, and providing the evidence, imdb won't remove my inaccurate credit

I have been trying for years to have my name removed as the director and composer (I've never composed music before) on a project called The Zombies (https://www.imdb.com/title/tt0800967/). I've successfully been removed from this project as an actor, after multiple attempts. After much effort, I managed track down the film's writer/producer, whom I've never met or worked with before, and had him attest in an email that I was never involved in his project. Despite sending this evidence to imdb multiple times, they keep refusing to remove these 2 credits.

I have tried, with no luck, to have my name removed from another short film, Smokestack (https://www.imdb.com/title/tt3670972), but have had no luck being able to contact the filmmakers involved (none of whom I've ever met or worked with), so I doubt imdb will ever remove this credit, especially as I can't find it online and therefore can't screenshot it.

Any help would be greatly appreciated.