Https://www.gs-forum.eu/threads/complete-tm-list-of-singapore-airlines-r-24-7-customer-support-numbers-list-of-singapore-airlines-r-support.226837/ https://women.volleybox.net/fanclubs/discussion/full-list-of-official-singapore-airline-customer-service-contact-numbers-in-usa-the-ultimate-official-guide-432239?new=true