Transfer New World to New World

As title says, is it free or do we have to pay?

Where do I have to go to find out?

Have transfered my characters from Japanese Data Centre to the New Oceanic Materia without a hitch But, have one transfered to a wrong new world and would like it with my other ones.

Thank You in Advance

If you transfer to a New World, you have to wait 90 days before you can transfer again.