Thank you for reaching out. I can certainly understand your frustration with not being able to add your Southwest Airline giftcards to your deivce. You can add gift cards that have been purchased outside of Samsung Pay.
Open Samsung Pay, then tap Menu (the three horizontal lines), and then tap Cards. Tap the Gift tab, then tap the Add gift card icon, and then tap Load gift cards. Search for and select the merchant from the list. Enter the Card number and PIN number, and then tap Confirm. Your gift card will be successfully added to Samsung Pay. Tap OK to complete the process.
If you have tried these steps and are still experiencing these symptoms, I would recommend contacting our Samsung pay team directly at 844-726-7297 for further assistance.
