Can't join the program even though my Xboxlive is in US

Hello dentata,

It takes our program up to 96 hours to recognize recent changes. Since you only migrated your account two days ago, we have only recently received that information.

i am having trouble with joining. it says that I'm not a member of the xboxlive ambassador program but i am can u please fix this.. please help

It is showing up in the commerce/billing page of my account as Xbox Live Gold subscription but still no luck. I will give it more time as you suggested.

The issue with the live rewards was a weird one. I originally joined Xbox rewards in the US region by accident even though my account was Canadian. They told me leave the rewards program and rejoin after 48 hours. Unfortunately, it's been over a week and
I still can't rejoin. I click to join and it just keeps taking me to the join page again in a vicious cycle. Support is looking into it as part of another thread/post I have on here as well.

Thanks for the suggestions though, appreciate it.

Okay, this happened to me when I play with my friends. Usually when I host and they can't join me I quit the world and then i restart it again and they enter with no problems. I even play with third parts add-ons but this happens even if i don't use them.
Or maybe your friend is in the beta program and then you need to do the Xbox insiders hub beta to join

After calling support, I was able to get my membership working. However, even though my account is clearly listed as being a gold member, I can't use any of the features (party system, join games, etc.). This is crazy. :/