Player Ints, I report and block and get put with him 3 times.

So after playing a game with a Twitch jungle, who started the game by asking if twitch jungle was even good, which is a great start, he proceeds to intentionally feed and flame his teammates the entire game. After the game myself and my duo both report, and block him. We queue up again and guess who was in our game, the same person. He says in chat, sorry about last game ill play a normal jungler this game. Well guess what he does again, intentionally feeds and flames his team. After the game, we report him AGAIN and again, we queue up. GUESS WHO GETS INTO OUR GAME FOR A 3RD TIME. At that point I was forced to dodge the game as to not get a loss because this player would intentionally feed again, and clearly reporting him was doing nothing. How in the world am I being put with this player so many times in a row after reporting AND blocking him. How can your coding and matchmaking be THAT bad? I need answers and I need you to fix this, unbelievable.