Why Riot can't say EVEN the length of a given ban to someone?

I mean It's not any personal info like a name, surname or phone number... It's just a length of a ban. I wrote MANY tickets to report some really toxic players and I would like to know ONLY and ONLY the length of a given ban to the reported person. Why you can't share this information? Is there any coded secret code for lifetime free RP or what? When I asked some time about it, I did not receive any answer why they can't share it... It's so dumb... If anyone knows, please explain, any Rioter maybe :/
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