Go to https://www.vanillagift.com, the website supplied by the card issuer, or the official Vanilla Gift Cards website.
On the webpage, look for the link that says "Activate or Register" and hit it.
Give the information required to activate the card. This normally comprises the security code, expiration date, and 16-digit card number located on the card's reverse.
Any other necessary information, such as your name, address, and contact details, should be entered. Review and accept the terms and conditions, if any, after doing so. Send the request for activation. A confirmation email or message stating that the Vanilla Gift Card has been activated will come later.
After activation, you can begin using the card to make purchases offline or online, depending on the networks and locations that accept the card.