Removing a false credit

I've been trying to remove a credit for years without luck...

Basically, early in my career, I worked for a small VFX company. We got a project through and I was told I was going to work on it and edit it. I was really excited and I added the project to IMDB with those as my roles (it was due to be my 2nd ever project). Then the director came and (understandably) wanted to do that himself. It was a short film for youtube about F1. I ended up on something else and never even saw the project until it was finished and online! 

Since then I've tried multiple different techniques to remove it from my credits as it's inaccurate and misleading. I never touched the film in the end! The editor was the director and the vfx were managed by someone else altogether - an artist. 

What can I do? I've tried and failed maybe 10 times to remove it.