Abusing every bannable word still goes on undetected by report system :|

I just finished a game with a volibear who was toxic and salty the whole game , abuse the "R" word "B" word "C" word "F" word and demanded to report me cuz I told him calm down white bear :| He is still playing btw , I did report him post game but I don't think the report system is following his misdeeds, I'm checking op.gg and he's playing on like nothing happened , does anyone having such things with such players ?
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