Please make sure you enter the code 4EW4K4BS before purchasing your first subscription! You won't be able to after.

How to redeem:

Login to your FINAL FANTASY XIV account (http://sqex.to/Msp)
Scroll to "Registration Codes"
Click "Enter Recruitment Code"
Enter Recruitment Code: 4EW4K4BS
Receive your Rewards --> http://sqex.to/Cz9

What you'll get:

Friendship Circlet, a headpiece that boosts your EXP by 20% at level 25 or below on ALL classes (including crafters and gatherers!)
Ballroom Etiquette - Improper Greetings, using this will unlock a new emote (/fistbump, /brofist)
Aetheryte Ticket (x99), players in possession of an aetheryte ticket when using Teleport will not incur a gil fee
Silver Chocobo Feathers (x10), trade to the Calamity Salvager NPC for special items