I'm on Excalibur

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3. PEZ7MP89

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6. VT7CNQWK

In-game Rewards
Friendship Circlet - +20% exp when under level 25
Aetheryte Ticket (x99) - Teleport for free when using the ticket
Ballroom Etiquette: Improper Greetings - unlocks Fist Bump emote
Silver Chocobo Feathers (x10) - Used to exchange for equipment from Calamity Salvager in any of the 3 starting cities

Instructions
Create a Square Enix account if you haven't done so yet.
Go to the Mogstation.[secure.square-enix.com]
Click on "Manage Service Options".
Select "Enter Recruitment Code".
Register the Recruitment code above.
Receive your reward in-game via mail.