Thanks for reaching out. Could you share a screenshot of your channel's Analytics page where you've surpassed the 1k subscriber count? Also, help us with a screenshot of Status and Features' page: https://yt.be/help/SnF ? Keep us posted.
Thanks for the info. To help the right team better investigate, please send a feedback report from your account with these steps: https://yt.be/help/feedback . You may not receive a response, but the details will help us identify and fix issues.