Game 2:
Jax [00:02:18] ****
Jax [00:02:20] nunnu
Jax [00:23:52] ****
Jax [00:23:53] kat
Game 4:
Graves [00:01:45] we're going bot
Graves [00:01:48] ****ing idiots
Graves [00:14:11] no
Graves [00:14:13] you're an idiot
Graves [00:14:35] doesn't go top
Graves [00:14:36] idot
Game 5:
Graves [00:05:56] you were tyring to gank
Graves [00:05:59] when you shouldn't have
Graves [00:05:59] idoot
Graves [00:06:14] I wasn't going to feed idiot
Graves [00:07:39] I'm going afk
Graves [00:07:42] you can report me
Graves [00:07:43] for afk
Graves [00:07:44] it's fine
It seems they did.
In any case, your warning was deserved. You have a massive tendency to get into silly arguments with your team mates and start insulting them. If you want to avoid future bans just focus on the game, don't get into childish fights even if provoked and stop calling people idiots.