Thank you for contacting SQUARE ENIX support,
We apologize for any trouble or inconvenience you have been experiencing with the voice over concern. The Vita version's code comes with a download for the Japanese voice-over pack which you can download from the PlayStation Store directly, after registering the code. The English voice-over pack will be available to download from the PlayStation Store in a few hours, as a free download. We ask for your patience while the English voice over pack is prepared for the PlayStation store.
Thank you for contacting the SQUARE ENIX Support Center.