Just to add, I'd really really like to avoid having to reset my phone and downgrade in smartswitch if at all possible. I am unable to get the official OneUI 4 update because of this account issue I believe.
Hello @usertUnCrFMCgB ,
We are unable to modify the registrations for S21 devices at this time as program is closed. unfortunately, only option is to use a smart switch and downgrade device to Android 11 to be able to receive Android 12 update.
One UI Beta Team
Im having same problem. I unenrolled months ago but I think the Beta Software is still on my phone. Im still having weird issues with apps closing and phone acts strange from time to time. Every time I reboot my phone I get the Beta software message, I attached a pic of it. I recently did a Factory Reset and I still get the beta message, why isnt that going away?