Literally What?

My account isn't trusted or whatever that nonsense is. I queued for a competitive match. I was placed in a game and played the entire first half and was top of my team. I was then kicked and banned from that game because it only allows "Trusted" accounts. I am now banned for 24 hours and I lost my rank? What happened?

EDIT: tfw you cheat for fun and all the shitters get salty because they dont have nearly as much fun and downvote like crazy lmao