To resolve the issue of the scanner feature not appearing in the UnitedHealthcare (UHC) app on your iPhone, follow these steps:

1. Check for App Updates

- Open the App Store on your iPhone.
- Tap on your profile icon at the top right.
- Scroll down to see if the UHC app has an available update. If so, tap Update next to the app.

2. Ensure Your iPhone is Updated

- Go to Settings > General > Software Update.
- If there's an update available, download and install it. This ensures your iPhone is running the latest version, which can fix bugs related to app functionalities.

3. Verify Permissions

- Open the Settings app.
- Scroll down and find the UHC app.
- Tap on it and ensure that camera access is enabled. The scanner feature requires camera permissions to function properly.

4. Reinstall the UHC App

- Press and hold the UHC app icon until it jiggles, then tap the X to delete it.
- Go to the App Store, search for the UHC app, and download it again. This can resolve issues caused by corrupted data.

5. Clear App Cache/Data

- Unfortunately, iOS does not provide a direct option to clear cache. However, reinstalling the app as mentioned previously helps with this.

6. Restart Your iPhone

- Hold the power button until the slider appears.
- Slide to power off, then turn your iPhone back on.

7. Contact UHC Support Again

- If the scanner feature is still not listed, consider reaching out to UHC support again with specific details about your issue. Ask if there are ongoing issues with the app or if the feature is temporarily unavailable.

If these steps don't resolve the issue, it may be a temporary bug or an issue with the UHC app itself. Keeping the app updated and checking UHC’s support page can provide further guidance - learn more - learn more.