I'm having problems trying to register my gift card. It keeps asking me which card issuer I have and whichever one I choose I get an error.
The process I went through was:
1. Order the gift card
2. Wait for the image of the back of the card
3. Go to the website to register the gift card (You can also scan the QR code)
4. Insert the card details
From there, you could get all the information you need: the CVV number, the cardholder name, the balance, etc.
You can use that information on Fantia using the Visa option, where there should be a Lifecard option (or something related to V-Preca) for the card provider.