Can't register one ui 7 beta program for my s24 ultra . showing maximum number registered already for beta program.

My note 20 ultra is facing vertical green line issue after software updating.what should i do right now.i have approached to customer care, service centre but they all denied to solve it.its feeling heart broken 

After Upgrading to Beta Android 12 to my note 30 ultra. Facing Camera problems. Camera doesn't working. Screen becomes completely black, Sound issue a little bit Battery  drawing more.

When will I get one ui 4.0 based android 12 for my Note 20 ultra 5G

I have received samsung one ui 3.1 in my note 20 ultra 5g here in Guwahati Assam, Let's see what's new features given, trying to figure out.