"One UI beta features aren't available" error in Members app

[TotalImmortal64]

I have a S10+ I installed the beta One UI 4 and now I get an error that my service provider has changed when I try to access the beta features in the members app and can't unenroll my device. Can someone unenroll me or correct my service provider to AT&T so I can unenroll my device?

[USBetaModerator]

Hello @TotalImmortal64 ,

Please send us a DM with your IMEI and new carrier information. 

Regards

One UI Beta Team