Forum:Playing on High elo teams for Season 3 rewards

Question regarding if this is punishable by Riot

So a friend of mine is making an attempt to have a Challenger team for 3v3s. To do so his group of 3 make teams and play in the Qualifiers over and over until they win 10 games in a row for any team they make. Through this process they have created many teams which are Platinum 2, Gold 1, etc. and let me keep one for free. The team had three invites on it and I am working together with these two guys to get 10 wins for Season 3 rewards. But what I need to know is will we be considered Elo boosting by getting Platinum 2 rewards after we win the 10 games. We are not having others play for us, but out Elo is dropping to the point, i.e. losing ten games, where we are playing against players of our same Elo, Bronze 1-Silver 3. Is this wrong by any rule of Riot Games or punishable by ban?