https://easytravel.zohodesk.com/portal/en/kb/articles/is-turkish-airlines-open-on-24-7

https://easytravel.zohodesk.com/portal/en/kb/articles/is-turkish-airlines-customer-service-24-7

https://customerserviceehelpcenter01.zohodesk.com/portal/en/kb/articles/aa-flightrefundinfo-can-i-cancel-my-american-airlines-flight-and-get-money-back-detailed-guide

https://customerserviceehelpcenter01.zohodesk.com/portal/en/kb/articles/aa-travelsupport-can-i-cancel-my-american-airlines-flight-and-get-money-back-full-policy

https://customerserviceehelpcenter01.zohodesk.com/portal/en/kb/articles/aa-refundhelp-can-i-cancel-my-american-airlines-flight-and-get-money-back-complete-guide

https://customerserviceehelpcenter01.zohodesk.com/portal/en/kb/articles/aa-flightrefund-can-i-cancel-my-american-airlines-flight-and-get-money-back-step-by-step-info

https://customerserviceehelpcenter01.zohodesk.com/portal/en/kb/articles/aa-policyinfo-what-is-the-cancellation-fee-for-american-airlines-basic-economy-traveler-tips

https://customerserviceehelpcenter01.zohodesk.com/portal/en/kb/articles/aa-flightpolicy-what-is-the-cancellation-fee-for-american-airlines-basic-economy-easy-steps-13-8-2025

https://customerserviceehelpcenter01.zohodesk.com/portal/en/kb/articles/aa-refundpolicy-what-is-the-cancellation-fee-for-american-airlines-basic-economy-clear-guide

https://customerserviceehelpcenter01.zohodesk.com/portal/en/kb/articles/aa-ticketpolicy-what-is-the-cancellation-fee-for-american-airlines-basic-economy-traveler-s-help

https://oig.dc.gov/sites/default/files/webform/medicaid_fraud_complaint_form/_sid_/How%20do%20I%20contact%20Philippine%20Airlines%20customer%20service_.pdf

https://oig.dc.gov/sites/default/files/webform/medicaid_fraud_complaint_form/_sid_/How%20to%20avail%20senior%20citizen%20discount%20in%20PAL%20online%20booking_.pdf