Accidentally registered my console for preview program on a friend's account

My friend was over and sent me an invite to the preview program, but we accidentally registered my console for his account and now I can't register it for my own. It still says that it's pending when we went to check. Is there anyway we could cancel it so
I can register my console for my own account?

:)

 

Xbox One preview registration

Hi my brother just recently sent me a invite to the xbox preview program but I accidentally registered my console over his account and now every time I go to register it gives me a error saying sorry this console is already registered to another account

 

Preview Program Problem HELP!

My brother recently sent me a invite to the Xbox Preview Program but I accidentally registered my console over his account and now every time I go to register it gives me a error saying sorry this console is already registered to another account please help
im having a really hard time with this

 

I also do not yet have access to the preview forums to post my problem there.

 

Hey there Ser Cadenza,

You should now have access to the Preview Program forums. Please head on over there to let the proper teams know what you're experiencing. Thanks in advance!