didnt get Keys and boxes

Riot NeuroCat On Reddit:

We're working on putting out a better explanation for this. For players that are punished by the Instant Feedback system and work off the punishment, they will still be restricted from earning Hextech chests or keys for a period while the system ensures that they have reformed their behavior. There is no fixed interval here - if you continue to play with sportsmanlike behavior, you'll eventually get back into good standing. We're looking into making a player's status more clear/visible to help avoid this kind of confusion.