Your character transfer is commissioned. After you have paid for the extra service and have prepared your character ingame, the transfer will be initiated during the next server save. It may take up to 24 hours to complete the transfer. During this time, you will not be able to login with this character.
If you have not paid for the service yet, you can do so by clicking on "Purchase".
If you want to make the payment for some reason at a later date, you can pay for the service by clicking on "view" beside the corresponding entry in the extra services section on your account page.