Regarding making a guild the official OCN guild for that game, I found this thread: http://www.overclock.net/t/357985/age-of-conan-guild-recruitment/0_60
It's older (2008) and from a different game, but I am pretty sure that this is relevant:
Do you have permission from the site to be the Offical guild? I doubt it, you better check with the site admin whether or not you can call yourself that.
Alrighty, this guild is now the OFFICIAL Overclock.net Age of Conan guild. I received permission to designate as thus from Xavier1421, Admin, and Taeric. Thanks to them, and let's get this guild rolling!
So, it does seem that getting permission is the way to go. Have you tried pming a senior moderator, or any of the game server moderators about getting permission?
I wish that they had a process set up to have a guild made official.
Hopefully a moderator can get someone to sign off on this. It shouldn't be to hard to see that this is pretty much the only thread that has people signed up to be in a guild in Guild Wars 2. So, I don't see why they wouldn't ok it.
EDIT: Actually, you might try asking Chipp
about making this guild official, seeing how he is a general manager. I know that he handles some of the OCN giveaways and contests, so he should have the authority to sign off on making a guild the official guild in a game. Edited by AtomicFrost - 8/23/12 at 8:30pm