https://supportcommunity.milestonesys.com/s/question/0D5bH00000ZFzIkSAL/officialwebsite-18668384910-can-i-cancel-a-singapore-airlines-ticket-within-24-hours-%E2%84%82%F0%9D%95%92%F0%9D%95%9D%F0%9D%95%9D%F0%9D%94%B8%F0%9D%95%98%F0%9D%95%96%F0%9D%95%9F%F0%9D%95%A5?language=en_US