Hi there! I see you're having trouble logging into the Maverik Rewards app on your iPhone running iOS 18.6.2. Let's work through this together.

First, could you tell me:
- Are you receiving any error messages when you try to log in?
- Are you using your email address or phone number as your login ID?
- Have you tried resetting your password recently?

Meanwhile, I'll walk you through some initial steps to try:

1. Double-check that your email or phone number and password are entered correctly, paying attention to any typos or capitalization.

2. Make sure your Maverik app is updated to the latest version from the App Store, since older versions might cause login issues.

3. If you’ve forgotten your password or think it might be incorrect, you can reset it by tapping the “Forgot Password” link on the login screen. Then, enter your email or phone number to get a reset email.

4. Confirm your internet connection is stable—try switching from Wi-Fi to cellular data or vice versa.

5. If it still doesn't work, try closing the app completely and reopening it, or restarting your iPhone.

If you’ve already tried these and are still unable to log in, let me know what you’ve done or any error messages you see, and we can dig deeper.

Are you ready to start with these, or would you like help with the password reset first?