If you hear a bit around how placements work this season you might find out that placements are TOTALLY worthless right now. Riot statet themselves they rank people much lower after their placements because they don't want to have "luck Gold V" placements. Therefore you have to play your way up the ladder (and with your old MMR this isn't too difficult.

I don't like boosting services personally, but if I were you I would offer to boost someone back to where he was last season.