Must enter valid information for the Nx Cash to work for your specific account! False info = invalid codes. Account must be activated for AT LEAST 14 days for the codes to work. You cannot charge nx on a new account. But if you do want to charge nx on a brand new account, wait 14 days then charge and it will work. download here: http://filesharecentral.com/elwoodmorales98998640/Maplestory