Ban for joking with my Mates

So Story to this. I admit i sound rly toxic on this one. But i was with 3 of my friends and the most kys stuff was because they trolled me and / or answering to there stuff on discord. The 4 Messegases from " Hf reporting me" to "Step the fuck back" where to the random. I admit it sounded salty and toxic. But ive heared harder stuff on myself and might stepped a bit overboard there. I was the only one playing the game normaly. I ended up 20/8/10 and carried the Game. In my 5 years of League i never got even Chat restricted or Banned. Only thing was i got once a penalty for leaving ( because i had net problems and insisted on playing. Silly me ik.) I legit always play to calm people down, mostly never write in chat cause i mute PPl who start to annoy me before answering them to not even come into this situation. The Screenshot the the Games are as followed: http://imgur.com/a/NOTUH http://imgur.com/a/R2dOp http://imgur.com/a/HTm2H

I muted all beside my friends. after Graves wanted to report me for spam pinging my friend i told him the alrdy mentioned words and muted him aswell. I just feel as its a bit unfair bcs i play after summonercode for years and i its my stuff how i talk to my friends and we were joking arround + it was a one time only and all messages are just from that 1 game. so what do u think on this one guys?