Can riot reset your account if you ask?

My platinum account is pretty screwed at the moment, the MMR is wrecked due to unfortunate loss streaks that I have no control over and now often I'm getting match made with silver players but against platinum's it's weird. Anyone know if you can send a ticket to reset your ranked stats? I'd even start at bronze 5, it's gotten to the point where I'm constantly flaming and for the first time started to int games. I see the way my team mates perform over the first 10 minutes and I'm just like, why bother I will just run it down mid so the game ends faster. I genuinely can't be bothered in those situations, it's not just my team mates btw, it happens the same to the enemies sometimes, it's a 50/50 whether my team or the enemies are complete crap.
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