Removing an actor from your IMDb Title on IMDb Pro

Hi IMDb Community -- I am having an unfortunate problem where the lead actor of my short film would like to be removed from the project so the credit does not show up on her page. She says it's per her agent's request, but I am fairly certain the reps can remove credits and edit pages, no?

Anywho, I want to respect this request but IMDb denied my removal evidence, as I don't really have anything formal. Any advice?

Thanks,