For those still curious heres how i did it without spending a penny of money irl. Use your Gamekit points to buy 500 Topaz for LOA III and use the Obuck card worth 10$ they send you in email to buy 10,000 NX off the Nexon launcher i believe its somewhere in the gift card option during purchase, This is how i completed the last quest without spending irl $.
Reply to Cory,
This topic is closed and already been solved myself. At first, install Maple Story 2 on steam, then use 10$ steam card to purchase at least 10,000 NX. Then save or screenshot the reciept that can be sent to tasks@gamekit.com.
how long did they take to confirm the quest for you, Been waiting a good 3 days or so and still nothing. havent had them be this slow on anything else.
Edit1: There is no gift section page that is linked towards MapleStory 2 quest site.