When trying to buy storage expansion coupons it doesn’t do anything despite having enough nx for purchase, idk if this is a problem with character inventory expansion coupons as mine are maxed out I can only confirm that the storage coupons are not buyable.
The only thing that isn't maxed by default far as I know is storage. All other coupons aren't necessary.
Ah good to know its been so long that I couldnt remember if you had to buy them or not but the storage coupons are still bugged.
