Are "fake" report possible to give ban ?

So I have been bann for 20 days , and after that i am getting my 35 draft wins to get rnak again , I havent been flming at all , now I barely speak , but happens last game when my team was doing poorly and they keep flaming at me , because I was playing gangplank , tho i was 9 1 10 ... dat didnt bother me , or at least i didnt argue back , but in the end , they aparently reported me for flaming , and ask enemy team to do so and i get a warning saying that my behavior isnt beeing good . I havent even talk in the games , I just want to know if I risk get another ban for 20 days , if anyone report me for no reason . Thank you .
Report as:
Offensive Spam Harassment Incorrect Board