Please follow the below steps to troubleshoot:

• Make sure you are using the gift card code in the store where the card is purchased. For example, if you buy a gift card in the EU store, you can't redeem it in the US store.
• Make sure the code is entered correctly.
• Check if the card has already been redeemed. You can check the balance through the link in the email when the card is sent to you.
• If you need more help, please contact info@snapmaker.com