[Resolved] Coupon redemption unavailable

Greetings, this is Shadow Arena.
We would like to inform you that the issue has been resolved as of March 5, 10:50 (UTC+9)
* Please note that "Shadow Arena x Intel" promotional coupons can be used after the maintenance on March 11 (Thu).
We apologize for the inconvenience.
We will do our best to provide you with a more stable service.
Thank you.

Greetings, this is Shadow Arena.
We are aware of the issue where coupons are not redeemed properly when used in game through [Use Coupon] > [Enter Coupon].
We are currently working to fix this issue as fast as we can.
We apologize for the inconvenience.
Details will be added to this notice when the issue is resolved.
Thank you.