https://help.annke.com/hc/en-us/community/posts/38286561367321-Luft-LivE-Suport-855-838-4971-What-is-the-24-hour-rule-for-Lufthansa-FAQs-%F0%9D%94%A4%F0%9D%94%A6%F0%9D%94%B3%F0%9D%94%A2-%F0%9D%94%B1%F0%9D%94%A5%F0%9D%94%A2%F0%9D%94%AA-%F0%9D%94%9E-%F0%9D%94%A0%F0%9D%94%9E%F0%9D%94%A9%F0%9D%94%A9