Keep being banned for no reason?

I queued up for a game and my internet dropped out, when it came back and I could queue again after a minute or so I had a message saying I’ve been temporarily banned for 10 minutes or something like that. I thought it must have just been due to the connection.

I just went to queue again now following that ban, and after 3 minutes of queuing I’ve now been banned for 1 hour. What the fuck is this?