https://washingtonstate.forums.rivals.com/threads/lh-s-usa-what-is-the-24-hour-rule-for-lufthansa-faqs-service-voice-connected.41169/

https://washingtonstate.forums.rivals.com/threads/lh-s-usa-what-is-the-24-hour-rule-for-lufthansa-faqs-service-voice-connected.41169/.

https://washingtonstate.forums.rivals.com/threads/lh-s-usa-what-is-the-24-hour-rule-for-lufthansa-faqs-service-voice-connected.41169/