What this "Report system" will do ?

Hi all , i am sure that sometimes this rep. system is doing her job , but not always. We had a game with a troll Elice who is only walking to die. Nope , he/she wasnt noob, he/she said that he/she will troll , cuz enemy took his/her red. And the rest u know it , elice go under their turret and leave her to be killed and agayn and agayn....What can i do to be sure that this player will get penalty .I must send a replay maybe ?
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