I just had the worse game of my life due to a bunch of premade trolls

I queued up for a normal draft mode and was matched with a pre-made team of 3. I was 2nd pick, and I was assigned jungle. Our first pick was assigned bot, but picked Nidalee with smite and said "pick order eh". I told him I would report him after the game. He would not let me jungle, and I told him I would go bot because I wanted to win instead of making a fuss. I picked Ezreal. At about 30 seconds left before the game started, he switched to ignite and said "Can't report me now". I switched to smite because I thought "Whatever, let's try ez jungle." At about 5 seconds before the game started, he traded Nidalee to our Leblanc. During the game, top and mid fed on purpose, and my support actively trolled me. Thresh would do his best to deny me cs for the entire game. He would take kills. He would throw lanterns away from me when I needed them just to prove he had it, but didn't want me to live. Thresh, Nid, and Leblanc ganged up on me in all chat, telling the other team to report me. I looked after the game, and Thresh, Nidalee and Poppy were in the same ranked team.

I just had the worse game of my life due to these three. Yes, it was normals. Yes, I shouldn't be this mad. Yes, I reported all of them. But it's been a long day, and I was looking forward to enjoying a game of LOL, instead of being harassed by my teammates.

If a mod can do anything else about this than please let me know. I have their names.