Trying to change my listing from mini series to movie

I have made a short film and the listing was made for me by someone else, however it was incorrectly listed as a TV Mini Series.

I have been trying to change it to a Movie and I was advised by IMDB to delete the episode listed. That has now been deleted and all of the cast and crew have been removed. However I still can't change the listing to a movie. Whenever I change the title format, either the format is wrong or the dates don't match. 

Is there a way to change this?