To resolve the issue of being unable to select your location in Mandalay on the foodpanda app after deletion and reinstallation, follow these steps:

1. Force Close and Restart the App:
- Before making any changes, completely close the foodpanda app. Open the app again to ensure it runs fresh.

2. Clear App Data:
- Navigate to your device's Settings.
- Select Apps or Application Manager.
- Find foodpanda in the list and tap on it.
- Choose Storage and then select Clear Data and Clear Cache.
- This can help remove any corrupted files that might be causing the issue.

3. Check Location Settings:
- Go to the Settings on your device and select Location.
- Ensure that location services are enabled for the foodpanda app.
- If not enabled, toggle on location permissions. This step is vital for the app to detect your location accurately.

4. Log Out and Log Back In:
- Open the foodpanda app, go to Account settings, and log out of your account.
- Log back in after a few moments. This can refresh the connection to your location service.

5. Select Location Manually:
- If the app still shows "trying to expand," try to manually enter your address.
- Access the location settings in the app and select the option to enter your address manually if it's available - learn more.

6. Reinstall the App:
- If issues persist, uninstall the foodpanda app completely.
- Go to the app store, download, and reinstall it.
- Make sure you use the most current version available.

7. Check for App Updates:
- Ensure the foodpanda app is updated to its latest version, as app updates often fix known bugs related to location services.

8. Contact Support if Needed:
- If none of these steps resolve the issue, consider reaching out to foodpanda's customer support for assistance. Provide them with details of your problem to expedite the process.

Following these steps should help you resolve the location selection issue within the foodpanda app. If you still experience issues, it may be worthwhile to check community forums or recent updates from foodpanda regarding location services in Mandalay - learn more - learn more - learn more.