Creator Referral Promo

I have enrolled my 2 YouTube channel in Creator Referral Promo for over3weeks, but until today, it says “Signups for the referral program are currently on hold until further notice”.
What are the requirements of the YouTube channel to be granted for this Creator Referral Promo? thank you.

Hello,

Thank you for expressing an interest in our referral program. Unfortunately at this time, we are no longer accepting new participants in the program. Note that this does not affect already verified Creators in the program.

Please see our official blog post for more information.

Thank you!