did you pay them to published it or they just do it willingly for their content? Genuinely asking
IGN doesn’t charge developers to post their trailers. They make a decision as to whether or not to post if they feel the trailer has editorial value and will get them clicks.
A public relations partner can help you in pitching your game trailer to sites like IGN.
(Source: this is my field. I was previously in AAA, but now also helping indies like Hell Express. https://youtu.be/kEIHXp_F4VE?si=rvR7fcQkn5R8ZWSD)