Why can't I check my vanilla balance?

How can I utilize the Visa Gift Card online? You can use your card to make shopping online, through entering the card's code as well as the expiry date, along with the 3-digit code (CVV) located on the reverse on the card.
Look at the reverse of your gift card. In most cases, you'll find an toll-free number that which you can dial to check the balance. You can also verify your balance on the website of the issuer and entering your card's 16-digit code as well as the security number.