Credited for work I didn't do, delete credit request declined over and over

Hi all! I have been trying over and over to remove a credit that was falsely attributed to me without my permission. It was for a no-budget film that I acted in. I am credited as a sound editor because I made some temp sound early in its edit, but the final product has absolutely nothing to do with me. There are no contracts, no deal memos, no agreements, or anything that show I agreed to be credited in this manner. It's frustrating to me because I feel like this no-budget filmmaker just wanted to pad out the credits. I keep getting declinations, first "unable to verify", then "more evidence needed", then "factually incorrect". Sure, the filmmaker did put my name down but in no way did I ask for work I didn't do to be on my profile forever. How can I approach this?