NCSOFT NCoin is the virtual currency in all of NCSOFT’s games; including, Aion, Lineage II, WildStar and Blade & Soul.
NCSOFT Global: http://us.ncsoft.com/
1. If you have an NCoin Card to redeem, log in to your account and select Apply a Code.
2. Once your code has been entered, click the Activate button.
3. You will now see a code available in your NCoin tab. Click Apply!
4. If your card is eligible for a bonus item, you will now be asked to select it. To see the options available to you, you may browse the rewards section below.
Details instructions here: http://us.ncsoft.com/en/gamecard/