If you’ve never purchased NCoin or Protobucks before via the In-Game Store, you will need to first complete at least one purchase of NCoin via your NC Account. To do so, log into your NC Account and click on the Buy NCoin icon located in the upper right hand corner of the screen.*
* Make sure you have 2-Step Verification enabled. Your account is REQUIRED to have 2-Step Verification in order to purchase Protobucks and/or NCoin.