Crystal Open Error

I just open a premium Crystal and then the game closed out losing my crystal with it. This is not the first time that this is happened as when I'm battling. I know you guys are not going to give you back my crystal but please fix the issue.
0
Comments
To contact them, click the gear icon on the upper left corner of the Contest's main screen. From there select 'Support' and you'll be able to submit a ticket.