I received mine. But I also "Checked in" monthly since for the last almost two years with the Cobell Administration office by phone to make sure that the mailing address I had on file with them was the same and didnt change or get messed up.
No one in my age group in my family has received theirs yet. But due in large part for not following up with the case administration office and not getting their paper work in etc.
The system addresses go in doesnt link with any outside computer system. It doesnt "Magically" update or find addresses. As far as I know.
I was only going off of what my Mother had told me for decades about how messed up administrations (B.I.A., Tribal Offices etc.) are when it comes to Native issues and administration.
I didnt want to leave that up to chance in this case.