Https://help.boox.com/hc/en-us/community/posts/30856032211348--LH-what-is-Lufthansa-Airlines-Cancellation-and-Refund-Process-24-7Hours https://help.boox.com/hc/en-us/community/posts/30856032211348--LH-what-is-Lufthansa-Airlines-Cancellation-and-Refund-Process-24-7Hours