Why will IMDB not correct incorrect credits?

Example - I was the SFX Supervisor on Lazarus, however a Danny Hargreaves's has claimed to be the SFX Supervisor on this (and he done this previously). On 02/12/24 I tried to add myself as SFX Supervisor and on 08/12/24 I tried to remove Danny Hargreaves as SFX supervisor. Both contributions were declined, leaving the record incorrect for that production. I can evidence my position in terms of unit list/call sheets and an email from the producer confirming Danny never did a day on the show. How do I correct the situation?

Hi