How do I get my chat logs when punished?

I got a chat restriction, for "UnSportsmen like conduct", I have gone out of my way to do NOTHING that could be considered close that. So I want to contest it, but I never got the chat logs that showed what I said. I am very sure there is nothing recently I did that could be considered at all in anyway punishable. If Riot disagrees fine but I want to know because i legitimately have no idea why I was punished. I have not cursed, raged, anything like that. The most "offensive" thing I said was please rumble stop feeding him, but that was it. Where can I check why they punished me because I really want to know so it won't happen again.