Code SCNKWW28
To redeem it, make sure you have a full account and not have paid any subscription yet, and follow the instructions:

1.Access your account via MogStation
2.Select Manage Service Option
3.Select Enter Recruitment Code
4.Input the Code: SCNKWW28
5.Follow the remaining instructions.

When you purchase a subscription for the first time you will get:

-Friendship Circlet: Increase EXP earned by 20% when level 25 and below.
-Aetheryte Ticket x 99: Players in possession of this teleport for free!
-Ballroom Etiquette: Using this will unlock the unique emote, /fistbump!
-10 Silver Chocobo Feathers, Trade to Calamity Salvager NPC for special weapons and armor.