I received a ban for prohibited 3rd party software when i never had any sort of software

I just got permabanned because riot system detects a software which doesn't exsist on my computer, i didn't even know that you could even use hacker programs in league of legends to begin with, what even blows my mind even more is how riot detected a software on my account which never have existed? i have spent enormous amount of time and cash on this account and it would've been idiotic to get it suspended by any means. This ban is unfair when i have not broken any rules, and should be investigated.
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