I'd like to suggest a new primary image. How do I do that? Paying For It (2024)

This image should be #1 https://www.imdb.com/title/tt27170114/mediaviewer/rm896755713/?ref_=ttmi_mi_all_11

and so it's the thumbnail for the film but I can't for the life of me figure out how to suggest a new image as the primary image. 

Let me know, I work for the film.