My codes are :
T65VKBJC
A38RVKD4 (Unused new codes)

Make sure you enter the code BEFORE purchasing your 1st subscription

Instructions:

Go to FFXIV Mog Station: http://sqex.to/Msp

Register a Square-Enix Account

Login and click on "Enter Recruitment Code"

Enter the code above and you'll be receiving rewards after your first subscription.

Rewards:

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. Fist Bump (/fistbump, /brofist)

10 Silver Chocobo Feathers: Trade to the Calamity Salvager NPC for special items. The Calamity Salvager NPC can be found in Limsa Lominsa, Gridania, or Ul'dah.