Sorry to tell you this but you ain't getting your Gil back. You basically messed up badly and lost your houses and Gil by transferring to a server with a Standard World status. As justausername told you, the reimbursement and free server transfers are only if you move to a server set as a Preferred World or New World. And there very much are categories of Preferred World and New World. Take a look at the Server Status page on Lodestone and look at the Japan servers to see that they have world set as Preferred Worlds. Also look at US Server's Dynamis DC to see the New World status. You messed up by not doing research and it cost you badly.