Banned account for no reason

This is fucking Bullshit. I just got a 14 day ban for repeatedly telling my team to group up and they refused. until when we had 4 towers left we made a come back as they finally fought as 5. The whole game our graves ignored lanes and pings, then started fighting 1v3 How is this my fault. Why do i get a ban for my team member ignoring me, refusing to work as a team, and plain and simple just dont even care. They had a 8/0 ashe and i was still trying to get our team to just fight as a team, i dont give up. why do i get in trouble for giving my team a solid chance to win and not waste AN HOUR OF MY TIME. I support riot, spend lots of money, but they just give no consideration to maybe adding a GROUP UP ping or somehow promoting grouping up, because without youre team fighting as a team, theres no point in playing AP or tanks even! I get banned for asking my team to group, and for our jungler to help and not just sit there killing scuttle crab for baron for no reason. i agree with the 14 day ban system for people who feed, but not people who are trying to help their team the entire game and be called toxic.