Regarding STA Restoration

Concerning issues on the required time of restoring STA getting reset
Fri 05/13/2016 03:20 am PDT
Dear Players,
The following are the details of this problem: When finishing a Quest stage or a competition of the World Tournament, the STA restoration timer has been found always reset to 5 minutes disregarding the actual time left to restore STA.
We're currently investigating the cause of this problem. We will keep you posted when the problem is fixed.
All players will receive 2 Dragon Stones as compensation for this error.
*The compensation will be sent to your Gift box.
We apologize for the inconvenience caused. Thank you for your understanding and support!
We hope you continue to enjoy playing Dragon Ball Z Dokkan Battle!