So joining a fire-team is a ban able offence

I was asked to join a fire-team during my last match but an invite didn’t appear so i decided whatever i’ll just queue up another game. About two minutes into the game i get an invite so i decide to leave and try to make more friends who play this game. This seems to have irritated Halo 5: Guardians and i was swiftly banned for an undisclosed amount of time (i can’t find the time on the arena or character screen). This wasn’t even a ranked playlist (still unexcusable) but the super fiesta playlist (unranked) so there is literally nothing at stake.

I want two questions answered while i wait for this inherently unjust swing to end.

  1. Why does leaving a social playlist once cause me to be banned.
  2. Why don’t they include the F***ING TIME OF THE BAN.

Hi I’m The ban thread please feed me.