Send us a ticket in-game
Tap the in-game support button and send us a ticket. (Recommended)
Email the support team
If you cannot login to the game, please email the game service team: gameonmyoji@global.netease.com
Report bugs in forum
You could also report bugs in the "Feedback / Bug Reporting" section on the forums here: http://forum.onmyojigame.com/forum-39-1.html