Starting on Sunday, April 9, 6am PDT / 8am CDT / 9am EDT / 1300 GMT (https://www.worldtimebuddy.com/?qm=1&lid=8,6,5,0&h=8&date=2017-4-9&sln=6-13), the payment system will undergo scheduled maintenance for approximately 7 hours. During this time, you may continue to purchase and spend NCoin, but Prestige Pack subscriptions* will be unavailable. If you are considering purchasing the Prestige Pack, please be sure to do so prior to the maintenance.
Thank you for your patience. :)
*Prestige Pack subscribers who have a recurring billing date on April 9 have been granted one additional day of membership time to retain Prestige Pack benefits through this maintenance window.