The KOBA Rider uses the battery from your car to work, and is paired with you car's individual VIN, make and model so it doesn't work in someone else's car.
To check the trip in question, select the specific trip in your app and review the location data, time of day and distance to help you reconcile the journey. It might be a good idea to check with other people in your household, or people who might drive the car, to see if they borrowed the car without you knowing.
If you still think there's an issue, please call our team and we can adjust your account.