https://support.empowersuite.com/hc/en-us/community/posts/16233103309340--1-855-838-4982-Singapore-Airlines-refund-%F0%9D%94%B8sk-%F0%9D%95%...

https://support.us.edu/hc/en-us/community/posts/26847829988631--1-855-838-4982-follow-Pollicy-Singapore-Airlines-refund-AnYtiMeSolution

https://support.us.edu/hc/en-us/community/posts/26847028335639--1-855-838-4982-Does-Singapore-Air-have-a-24-hour-cancellation-policy-AnYtiMe...

https://support.us.edu/hc/en-us/community/posts/26845717233815-1-866-738-0729-Singapore-Airlines-Check-in-Understanding-Cancellation