Hi! I understand your Jack in the Box app is no longer accepting your debit card. Let's sort this out together. To start, could you share if you’re seeing any specific error messages when you try to use your debit card? Also, have you tried using the card on the app previously without issues, or is this happening for the first time now?

In the meantime, here are a few common, easy checks we can try:

1. Check Card Details: Make sure the card number, expiration date, name, and security code (CVV) are entered correctly and that the billing address matches what your bank has on file.

2. Update the App: If you haven’t recently, please update the Jack in the Box app to the latest version from your app store. Sometimes payment issues arise from outdated app versions.

3. Log Out and Back In: Logging out of your account and then logging back in can refresh your session and fix payment glitches.

4. Try Removing and Re-adding the Card: Sometimes the app might automatically remove card info if there was a problem. Remove your debit card from payment methods and add it again.

5. Use the Website: Temporarily try ordering through the Jack in the Box website via your browser rather than the app. Some users have found this to work when the app payment fails.

If these steps don’t resolve the problem, let me know what errors or messages appear, and we can walk through more advanced troubleshooting or check if there might be a temporary system or banking partner issue.

Are you able to try those steps and tell me how it goes?