Hey, just to clarify, there's no time-based lockout in the game. Scenes are unlocked based on character paths and sometimes specific stats (all of this is warned about in the phone notes before the event), but you won't miss anything just because time passes.
As for the code, including it in the download archive isn't ideal, especially for Android users, where it can cause issues. It would also require reuploading the entire file every two weeks, which resets important version stats on Itch. I realize it's not perfect, but for now it's what works.
If email isn't convenient, I totally understand. You might want to try another platform like UniFans, where subscribing gives you instant access to the latest release post (including the code) without needing to reach out.
Sorry for the inconvenience, and thanks for supporting the game!