Prepare your card

Before you can start issuing gift cards, you need to set up your card correctly.

Rez a card on the ground

It's important that you rez the card, not just wear it, otherwise permissions that you set on the card will not be applied correctly.

Right click, and EDIT the card
Set the card permissions to [NO MODIFY] and [NO COPY], but leave [TRANSFER] ticked
Switch to the CONTENTS tab
Right click the "CasperVend Gift Card Activator" script, and go to PROPERTIES.
Set the permissions of the "CasperVend Gift Card Activator" script to [NO TRANSFER], then close the Inventory Item Properties window
Right click the "CasperVend Gift Card v_____" script, and go to PROPERTIES.
Set the permissions of the "CasperVend Gift Card v_____" script to [NO COPY], then close the Inventory Item Properties window.

The instructions notecard inside the card is NO-TRANSFER. This is intentional, because the notecard should bear your name and not ours.

DO NOT DELETE THE `CasperVend Gift Card Activator` SCRIPT.

Right click, and EDIT the card.
Copy the contents of the "Instructions" notecard into a brand new notecard with exactly the same name
Yes, this means YOUR version of the card must also just be named "Instructions", with no additional words or punctuation
Edit the contents of the notecard. We've left instructions IN CAPITALS which you should follow and remove.
Delete the original "Instructions" notecard from inside the gift card
Place your new "Instructions" notecard into the card