these players trolled me in champ select

the player {Removed by Moderation} got support in my game (EUW) he then proceeded to ask me (first pick) to pick taric for him. i had declared ziggs before he asked me but i asked him if he had ziggs just to be sure. when he had to pick he picked zyra and went zyra support and forced me into taric mid . his premade adc {removed by Moderation} then proceeded to blame everything that happened on me going taric mid and called me a troller. I got a screenshot of the champ select chat but I do not know how to add it.