Quote:
If a player repeatedly team kills, they will temporarily be banned from matchmaking. After multiple offenses, a permanent ban may be issued to the offending player’s account.:
- First offense: Banned from Matchmaking for 30 minutes
- Second offense: Banned from Matchmaking for 1 hour
- Third offense: Banned from Matchmaking for 2 hours.
- Fourth offense: Banned from Matchmaking for 24 hours.
- Fifth offense: Banned from Matchmaking for 7 days.
Duration of a suspension will be decided at Ubisoft’s discretion, on a case by case basis. After multiple offenses, the player may receive up to a permanent ban. Actual disciplinary action may differ from the list of examples depending on the severity of the behavior and, again, shall be decided at Ubisoft’s discretion, on a case-by-case basis.
What you listed is what usually happens BUT they specify that it's on a case by case basis and that depending on the severity, it's at Ubisoft's discretion. I don't know what you did but you seems to fall into that last category. Nothing can be done for you on these forums, sorry.