Recruitment codes are:

MCVPNSB7
UZ7A8SVP

How to register a friend code:
Log into your Mog Station
Go into the "Manage Service Option" tab
Enter the Recruitment Code - before you purchase your first 30 days
Enjoy the bonus items!

Bonus items:
Friendship Circlet - Increases EXP earned by 20% when level 25 and below.
Aetheryte Ticket x 99 - Players in possession of an aetheryte ticket when using Teleport will not incur a gil fee.
Ballroom Etiquette / Improper Greetings - Using this will unlock a new emote.
10 Silver Chocobo Feathers - Trade to the Calamity Salvager NPC for special items.