"Recruit a friend" code thread - New player exp boosts!

[Parawill]

I never understood how this recruit a friend thing worked x_x

Does it have to be a new character and a new player? or can any one use these codes so long as they sub for 90 days? O_o; that's the part where I am confused. >_<

Essentially the code gives someone a 1-month trial of the game. The trial restricts them from from /telling and other sorts of social interactions (correct me if I'm wrong). Once the person who has entered the code and decides to purchase 90 days + (or a cumulative purchase of 30 days each month to 90), the person who provided the code will get a Chocobo Mount and other sorts of fun stuff.