trolls

pleaseeeee riot do something about the guys who trolls in blind pick games i just had a 2 trolls so what happened that im supposed to go top lane because i called top lane first right also i called for yasuo first right ? a guy comes in locks in yasuo and goes mid i picked riven and we started the game another guy who is supposed to go support picked irelia and went top lane just because irelia cant be support so he ruined my game and my adc's game l34gu3n00b3r the guy who picked my champion (yasuo) lebkuchenchris the guy who picked irelia and he is supposed to go support please riot do something to these trolls blind pick is full of trolls and guys who locks in and goes to your lane