Permabanned without apparent reason

I've received an e-mail that said I got permabanned (well 90 year ban to be exact - 2105, but I don't think I will be alive by then) However, I have no past history of suspension or chat restriction, and maintained healthy behavior for every game, so I doubt it is a behavior issue. Only other possibility would be a third party program, but two programs that I've used before permabanned (LVOC and Curse voice) are allowed by Riot Gaming (link to back up my statement: I've sent in support ticket for the resolution, but it appears that people often get macro-answer for their first response. Can any Riot members provide more detailed information regarding my ban (or unban me if it was false positive)? Thank you.
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