Ban after game completion

Good evening everyone, Im a little confused at what just happened but I was playing a game of Grifball on Halo 5 and after the match completed and everyone returned to the lobby I randomly recieved a message that one or more player in my fireteam is banned from playing Halo 5 Guardians. Very confused as I did nothing wrong and not very happy having just purchased the limited edition halo 5 console for almost 500 dollars new on amazon and being so psyched to finally play some halo 5 and get a handfull of matches in before this. Very dissapointed and really hope theres a fix for this so I can get back into the fray.

same

Please use the official ban thread for discussing bans:
https://www.halowaypoint.com/en-us/forums/e0d9938206f04a598ce84f2c8cadce02/topics/the-official-halo-5-why-was-i-banned-thread/19fa6556-e0b1-4248-b817-b3a99d0af5bf/posts?page=42#post829

What he said. ^