https://supportcommunity.milestonesys.com/s/question/0D5bH00000ZEBHPSA5/18667380729-how-much-notice-to-cancel-a-singapore-airlines-flight
https://supportcommunity.milestonesys.com/s/question/0D5bH00000ZEBHPSA5/18667380729-how-much-notice-to-cancel-a-singapore-airlines-flight https://supportcommunity.milestonesys.com/s/question/0D5bH00000ZEBHPSA5/18667380729-how-much-notice-to-cancel-a-singapore-airlines-flight