Sprwt does capture it at purchase time — when Allow Shipping is on and the buyer unticks Digital Gift Card, the mailing address (address line, address line 2, town, city, zip code) is saved on the gift card record along with a digital/physical flag. In the current version, though, neither the Marketing > Giftcards edit page nor the gift card line on the order (Checkouts) page displays that address or the digital/physical flag — both only show Delivery Date, Recipient Name, Code, Email and Phone. To fulfill a physical card you will need to look up the buyer's order and contact them directly, or contact Sprwt support if you need the stored address pulled from the database.