I got removed from xbox ambassador for nothing

I had not logged into my Xbox ambassador account for a while and when I did it says I was removed, this is quite shocking to me because like I hadn't been here how did I do something wrong, I do have thought because I sometimes play at my cousin's house and I log onto my acc on his Xbox but he shouldn't be able to log on because there is a password but he often uses a website to boot me and other offline to I wouldn't be surprised if he could log onto my account. I did post help on forums a while back but i don't remember doing any miss information and I don't post anything other than screen captures and like gam recordings on my Xbox feed, plus i don't have the discord for Xbox ambassadors so I cant really find why I would be banned, I would really appreciate it if i was told why at least so I could better grasp the situations and if it was someone else who logged onto my account to at least know what and who it was.

:)