if you get boosted, at least go duoq
as far as i know theres no rulebreak when you are bronze/silver and you duoq with someone who smurfs and his main is actually plat/dia+ this way you can get boosted without being banned, if you are so desperate to reach gold or higher.
i seriously dont get why you would have s1 else play on your account to boost you. like whats the point? "yay i was bronze for 3 years, now im plat wahey watch my mmr drop way faster than i drop division and thus completely fuck my own account."
correct me if my first part is wrong.
also do me a favor and dont spam the riot support when you know you clearly got boosted THIS SEASON. maybe you let someone play on your acc and boost you 9 months ago? then accept it. you f'd up