So I was playing Arena, had a couple lousy games, then got into a game where two players on my team left immediately upon game start so it was 2v4 from the beginning. Tried to last but it was awful so I left. Went to SP campaign to blow of some steam for a few mins. Then left that. Attempted to get into lobby for Arena and it said I was banned for 20 mins or whatever. What gives? Why would leaving the SP campaign add to the ban hammer?
There is a delay sometimes when it comes to receiving the ban. You were not banned for campaign but the multiplayer match you left before you played campaign.