Lobby terminated and penalty

I just had a lobby with the support hovering ezreal. I said “I’m not playing with ezreal support”. My intention was to let the support know I would dodge if they locked it in but apparently I get punished for that. We were still only on first pick and the lobby terminated and I got a 15 minute ban for saying that. Ngl seems kind of crazy to me I just wanted to play with a real support… also it insta cancelled when I typed that so there was definitely no time for me to get reported