This promo is still valid. (Tested Sept. 1st 2024)
Topic on Talk:Ninja Cowl
Could you upload an image of your inventory history and purchase history so we can use it as a reference? Thanks!
Where would I upload? Also I can confirm that adding Hero Academy to your account no longer gives you the four promo items any longer. I can upload the steam support reply regarding that as well.
Just upload it to a third-party image host, like Imgur.
test
imgur.com/a/sUh1S2j
Oh it wasn't allowing me to send a link with the http, there you go. :)
Thank you!
