Denial of IMDB c credit despite evidence provision

Hi. 

In 2019 I was a cast member of the Game of Thrones Pilot that wasn't ultimately commissioned:

https://www.imdb.com/title/tt6857128/reference/

This production went by the code name Blood Moon at the time, for secrecy's sake. This is no longer an unknown fact - it is listed on the IMDB page as an "alternative title".

I recently submitted to get this added to my IMDB page. It was denied. I provided the front page of the official PACT agreement (UK contract). It was again denied. I then provided the Casting Advice note that went between the Production Company and my agency. Again it has been denied. 

The only issue I can see it that the title of the production is listed as "Blood Moon" not "Game of Thrones Unaired Pilot" - however, as I say this is a fact already known to IMDB.

How can I get them to recognise (or communicate with me on) this issue?

Thanks,

Ewan