I was a Patreon in July, so the route should have been finished by then. My e-mail on Patreon is ...... (deleted)
Yep I see the confusion here. You first joined Patreon in March 2022, when 19 chapters of Gray were released.
You then pledged again in July 2023, but never ended up updating the game, or didn't enter in the password of that month to unlock the new content. Hence why you never got the updated content!
I will send you an email with further instructions.