https://www.devex.com/people/refund_policy-what-is-the-cancellation-policy-for-lufthansa-2413451

https://www.tripadvisor.com/ShowTopic-g1-i10702-k15052930-Ways_to_Get_American_Airlines_Air_Lines_Support_by_AA_Call-Air_Travel.html https://www.tripadvisor.com/ShowTopic-g1-i10702-k15052931-Ways_to_Get_American_Airlines_Customer_service_by_Call_Chat-Air_Travel.html https://www.tripadvisor.com/ShowTopic-g1-i10702-k15052932-Ways_to_Get_American_Airlines_Customer_service_by_Number-Air_Travel.html https://www.tripadvisor.com/ShowTopic-g1-i10702-k15052933-Ways_to_Get_American_Airlines_Customer_service_by_Phone-Air_Travel.html

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https://community.norton.com/t/who-to-call-about-an-email/360352

https://www.devex.com/people/rescheduling-tips-does-qatar-have-a-free-cancellation-policy-2413324

https://www.devex.com/people/n-t-n-l-did-united-get-rid-of-cancellation-fees-2413723

https://www.devex.com/people/la-refund_policy-what-is-the-cancellation-policy-for-lufthansa-2413344