Quote:
what's the process if you want to change your citizenship?
I belive you talk to the consulate in the city of your destination. i.e. if you want to move to Bastok go to Bastok and talk to the Bastokian Consulate (Metalworks).
Quote:
is there a cost involved?
Short answer: Yes
Long Answer: Yes, but the cost depends on the conquest rank order of the city that you are trying to move to.
Moving to a:
1st place nation costs 40k
2nd place nation costs 10k (I think)
3rd place nation costs 4k
Remember that's the place of the city that you are moving to, not your current city.