If nothing happens when you click on the "add card" option on your H-E-B Debit app, follow these steps to troubleshoot and resolve the issue:

1. Check Internet Connection: Ensure you have a stable internet connection. If your connection is weak or intermittent, it may affect how the app functions.

2. Update the App: Go to the Google Play Store or the App Store, search for the H-E-B Debit app, and see if there’s an available update. An outdated version can cause various bugs, including issues with adding cards.

3. Clear App Cache (For Android users):
- Go to Settings > Apps > H-E-B Debit.
- Tap on Storage and then select Clear Cache.
- Restart the app and try again.

4. Restart Your Device: Sometimes, simply restarting your device can fix issues with apps not functioning correctly.

5. Reinstall the App: If the issue persists, uninstall the H-E-B app and then reinstall it. This helps reset app functionalities and can resolve persistent problems.

6. Try Using a Different Device: If possible, try accessing your H-E-B Debit account from another device or via a web browser to see if the problem is isolated to the app.

7. Contact H-E-B Customer Service: If you still cannot add a card after trying the above steps, reach out to H-E-B's customer support for assistance. You can contact them through their support page - [learn more].

8. Check FAQ Section: Visit the Frequently Asked Questions page for additional troubleshooting tips related to card issues - [learn more].

By following these steps, you should be able to resolve the issue with the "add card" option in the H-E-B Debit app. If problems continue, customer service will provide the necessary support.