https://supportsi.hexagon.com/help/s/question/0D5Tc00000HFuziKAD/faqfa-does-frontier-refund-you-if-you-cancel-ask-for-money?language=en_US
https://supportsi.hexagon.com/help/s/question/0D5Tc00000HG2xJKAT/how-do-i-speak-to-american-customer-service-get-official-aa?language=en_US
https://supportsi.hexagon.com/help/s/question/0D5Tc00000HG4fYKAT/aahow-can-i-get-in-touch-with-american-airlines-fast-customer-service?language=en_US