Banned for no reason?

Hi,
I recently got banned from multiplayer (not permanently, will be able to play again in 8 hours). Yesterday I had a teamgame when my door ringed, so paused the game, went to door, came back some minutes later and saw people have unpaused rigth away. I am totally fine with people not liking to wait for me, but also its pretty pointless to play any further when being so far behind in a nearly balanced match, so I told them I was afk for last couple of mins and resigned. Can this already be a reason to be banned?

Someone else already had issues with something like this?