https://divx.zendesk.com/hc/en-us/community/posts/26782754999191-1855-8384-982-What-is-the-CAncellation-policy-For-Singapore-Airlines-How-much-notice-to-cancel-a-Singapore-Airlines-flight-Customer-Help-Agent
https://divx.zendesk.com/hc/en-us/community/posts/26782754999191-1855-8384-982-What-is-the-CAncellation-policy-For-Singapore-Airlines-How-much-notice-to-cancel-a-Singapore-Airlines-flight-Customer-Help-Agent