Hi there! I see you're having trouble with the 7-Eleven app on your iPhone running iOS 18.6.2. Could you share a bit more about what exactly isn't working? For example, is the app not opening, crashing, not letting you log in, or something else? Knowing this will help me guide you better.

While you provide those details, I can start with some common troubleshooting steps that often fix app issues:

1. Check Internet Connection: Make sure your iPhone is connected to a stable internet network, either Wi-Fi or cellular data.

2. Close and Restart the App: Double-click the Home button (or swipe up from the bottom on devices without a Home button) to see all open apps. Swipe the 7-Eleven app off the screen to close it, then reopen it.

3. Restart Your iPhone: Sometimes a fresh start clears glitches.

4. Check for App Updates: Go to the App Store, tap on your profile icon at the top right, and scroll to see if there’s an update available for the 7-Eleven app.

5. Verify Date and Time Settings: Ensure your iPhone’s date and time are set to automatic. Go to Settings > General > Date & Time, then toggle on “Set Automatically.”

6. Reinstall the App: If the above don’t work, uninstall the app by pressing its icon and selecting "Remove App," then reinstall it from the App Store.

Let me know if you’ve already tried any of these or if your problem is something different, and we can try more specific fixes from there!