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Some Good Things to Know : Valve does not have a choice in the middle of banning, it's either a ban or no ban. If someone says that, its a phisher or a hijacker who wants to steal your account. Another thing, if they say they reported you on "accident" and you need to speak to a "admin", it's all a bluff, and you should report the account that tries to message you for such a accusation.
This has happened to me before.