I tried to cancel 2 award tickets with expiry miles on 30/9/22 and 31/10/22, travel dates in September 2023. The CSO tried to appeal for me to get the expired miles reinstated. After 2 weeks he call me and told me it was unsuccessful, meaning if I cancel the award tickets, the miles will be forfeited but I can get my taxes back after paying the cancellation fee. KrisFlyer will only reinstate the miles for 6 months for these 3 reasons:
1. self or family's medical reason, need to provide supporting documents and prove relationship
2. border closure by government
3. natural disaster or political crisis
So I decide to hold on to the tickets and wait till closure to travel dates to see if there is any of the 3 reasons.