Got a message that said my behavior wasn't in line because a duo wrongly reported me...

I was top and i was getting camped by the enemy jungler for the first 5 mins. I told my jungle to come and he refused. Later on I told him not to come top because i was already behind. I actually managed to poke my laner down to the point where I could kill him. At this time my jungle comes and takes the kill when I was about to solo kill him. I said in chat "really, ur tilting me" After that she came top again and took another kill I could have had. Then the jungler kept typing in chat "ur tilting me" and harassing me with other sayings. I wasn't typing to him at this point. In the game it was clear he was duo with our midlaner because they were talking about the other games they played before this one. After the game in the lobby she harrassed me again, even though i wasn't typing. Then I got a message saying my behavior wasn't in line and I got reported... This is so stupid. This guy and his duo clearly reported me for no reason and I got warned for it. This shouldn't go against my account as a warning imo.