What is the 24-hour rule for 1-855-838-5873 Lufthansa?[@24*7(Customer Service)] }] What is the 24-hour rule for 1-855-838-5873 Lufthansa?[@24*7(Customer Service)] }]What is the 24-hour rule for 1-855-838-5873 Lufthansa?[@24*7(Customer Service)] }] https://www.ultimate-guitar.com/forum/showthread.php?t=3092330