Go to your event > click on “Manage Users” > Under the “Attending” Tab, look for the name of the player and swipe from left to right on their name (you can do this on web, too) > Tap “Remove Order” and you will be prompted to add a message about why you removed them, if you’d like.
The player will automatically be removed from the event chat, as well. They will automatically be refunded if you removed them by the refund deadline.
Note: Only Event Managers, Event Admins, and Group Admins have permission to remove players from an event.