Queue bug

I was in a queue waiting. A friend of mine had a 2 player ranked game I could join. I clicked to join it, it popped up the screen with two of us there. I then had a "Accept Match" timer start. I clicked on it, and it joined me to a different party...so not wanting to get banned, i continued. I picked a character, then after both parties banned and in the middle of champion select, i was kicked out of the queue saying "I had been removed from the party". I was then banned for 5 minutes. If you click to accept a friends game, it should automatically take you out of the matchmaking queue! Thanks.