Hiya! I'm on Siren. If you would use my codes I would appreciate it. (any server can use them) If you do join Siren do message me and so you set up with a nice free company to start with too!
My codes:
X73KRGBH
5PHGVFET

You can register the code by
1. Creating a Square Enix account
2. Logging into your Mog Station here -> http://sqex.to/Msp
3. Going to the tab "Manage Service Option"
4. Lastly, enter the Recruitment Code - before you purchase your first 30 days

Bonus items are:
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

Welcome to Stormblood madness right now