Unreasonable Suspension by Riot Games

My account received a suspension from Riot games because of "MMR Boosting". I never heard the term "MMR Boosting" before I got the suspension. Generally, what the Riot says is that MMR boosting is like someone who is not a owner of my account played Rank game in order to raise my MMR. So I request some data or evidence that can prove the MMR boosting, such as the specific game that Riot think it is MMR Boosting. However, Riot just saying that they can't give it because it's their rule. I played League (either Normal or Rank) in many places, but I swear that no one can use my account even though he or she is my friend or family. Riot Games is interrupting the right of users and abusing their power as an admin.