Actress' name misspelled

I am a cast member of a movie listed here on IMDb called Dissappear in a Day, but my name has been misspelled. Instead of my last name Eijsker, it's listed as Eysker. I tried to correct it, but IMDb declined my correction. I'm trying to provide evidence by sending the official Facebook webpage of the film where I'm tagged in the photos, but I can't find a way to send this evidence. IMDb tells me I need to tick the box “provide an explanation to assist in processing this submission” and “check these updates”, but I don't see these boxes anywhere in my contribution history. When I reload the submission reference, it tells me I cannot add further changes until the first of July. It's really annoying, can someone help?