Can I get a refund for unredeemed Apple Gift Card?

Getting a refund is not likely, but Apple can provide assistance with troubles using the card depending on the message you received for the card not working.

If you can't redeem your Apple Gift Card or App Store & iTunes Gift Card - Apple Support

Stevenscotamc25 wrote:

What going to happen if you can't redeem your gift card can get your money back.

That will depend on the reason the Gift Card cannot be redeemed.

• If your Gift Card was never activated by the retailer, then you will need to resolve the issue with them.
• If the numbers have been scratched off, Apple can assist after providing them more information.

There is no cash value for a Gift Card, so if it has been activated, it will be unlikely you will get any money back. Without knowing the reason for not being able to redeem it or any information gained by following the procedures in the Support Article, there is not much more information that can be provided.