Dissapointing to see that Riot is not taking tickets seriously.

Well, i decided to, when there is a serious reportable player to report it, besides reporting it in game, to write him a ticket(I'm talking about hard verbal abuse or harras) and to provide a photo of the chat (proof of what that player has said). In one game, the enemy adc was so angry that decided to harras me and my team for him getting feeders/trolls and the top laner afk(he was feeding as well). He harrased us by saying how bad we were and when one of my teammate said "You mad?" he wrote back "Kys". I wrote him a ticket to Riot and i got a response from them that they will investigate the situation. I asked them to check the chat logs of that specific player and they said they will investigate it. And guess what? Neither the IFS and Riot took action. I can't prove that he wrote those letters to you here in the boards, but the guys from Riots' player-behvior team can do it. He is still able to play(i know this beacuse i checked his OP.GG to see how effective Riot was). I am just profound disappointed about how Riot's seriousness on tickets like these. If I am wrong somewhere, please feel free to correct me. I would really like to hear y'all opinion on this.

[sg-miss-fortune]