https://www.certcommunity.org/forum/topic/26153-full-list-of-official-expedi%F0%9D%93%AA-customer%C2%AE-service-contact-numbers-in-usa%C2%AE%E2%80%93-the-ultimate-official-guide/ https://www.certcommunity.org/forum/topic/26311-complete-list-of-american-airlines-customer-service-contact-numbers-in-usa-full-detailed-guide/...