If you are experiencing a pop-up in the Tim Hortons app that cannot be dismissed, rendering the app unusable, follow these steps to resolve the issue:

1. Force Quit the App

- On your device, go to the home screen.
- Swipe up from the bottom of the screen (or press the home button twice) to access the app switcher.
- Find the Tim Hortons app and swipe it off the screen to force quit.

2. Restart Your Device

- Long press the power button until you see an option to restart your device.
- Select "Restart" and wait for your device to reboot completely.

3. Clear the App Cache (If Applicable)

For some devices, clearing the app cache can fix issues:

- Go to Settings > Apps.
- Locate the Tim Hortons app and tap on it.
- Select Storage, then tap on Clear Cache.

4. Update the App

Ensure that you have the latest version of the app, as updates can fix bugs and improve performance:

- Open the app store on your device (Google Play for Android, App Store for iOS).
- Search for "Tim Hortons" and check if an update is available. If yes, tap Update.

5. Check for Device Updates

Sometimes compatibility issues arise with older device software:

- Go to Settings > System > Software Update (or similar).
- If an update is available, download and install it.

6. Reinstall the App

If the issue persists, uninstalling and reinstalling the app can often resolve stubborn problems:

- Press and hold the Tim Hortons app icon and select the option to uninstall.
- Revisit the app store, download, and reinstall the Tim Hortons app.

7. Contact Customer Support

If none of the above steps work, contacting Tim Hortons customer support may provide further assistance. Visit their Mobile App FAQ for help.

Implementing these steps should help you resolve the pop-up issue in the Tim Hortons app, making it usable again. For further discussions on similar problems, consider checking user experiences on platforms like Reddit, where others have shared their solutions learn more - learn more - learn more.