If you have had a negative experience with a player, there are two methods of reporting users:
For in-game abuse, including both post- and pre-game chat, please use the post-game reporting tool.
For out-of-game abuse (IE: direct messages), **please submit a report to Player Support**
Doing these will submit a report to Riot for further investigation. - that what I got from Riot on boards.
Q: How to report player if when u r trying to report with Support. Ticket automatically change and says u need to use a board?