I've attempted the character transfer a few times now. Each time, I've received the same result: being redirected to a login page, and subsequently receiving the following error message on an otherwise white page.
{"status":true,"data":"","settings":{"ahah":null}}
Also, the first time I attempted the transfer, it was shown to be "Free", whereas since the first attempt, I've had to select the option to pay 1000 cartel coins. My character transfer history shows no record of any transfers actually occurring.