The 'Mute' function is there to allow players to hide messages of players in the Global Chat, for example in the case of a spammer. Please note that when you mute a player, this player will still be able to see your messages. The list of muted players will be reset next time you launch the game.
If you see a player who is offensive in chat, you can use the automated reporting tool by tapping on the offending message and choosing "Report".
Using the Report button does not automatically end up in a ban for the reported user. However, every report is manually reviewed by our moderators and taken seriously. Due to the amount of reports we receive, it can take up to 48h until a report is reviewed.
We kindly ask you not to misuse the report button. The more false reports we receive, the longer it will take us to take care of the really urgent matters.