https://addas.forumotion.com/t22-a-full-list-of-qatar-airways-customer-contact-numbers-in-usa-a-comp

https://www.propertyinvesting.com/topic/5108663-air-canada-main-customer-service-official-number-latest-guide-for-airl/

https://www.propertyinvesting.com/topic/5108766-qatar-airways-main-customer-service-official-number-latest-guide-for-airl/