Singapore not covering itself in glory either. Cancelled a First Class equipped flight so I cancelled a redemption trip. They refunded the points but then expired the points due to run off in November despite making a song and dance about extending them. Emailed before Christmas but no response yet and not joy following up on socials. Points came from Amex, the replacement value about 7k AUD. Not sure what I can do, happy for your thoughts….
It will require several follow ups but you will get the miles back that were incorrectly withheld. See my experience from post 47 onwards here:
GOOD NEWS! Krisflyer Miles to be extended until 2023 [previously April 2022]
I just got my dreaded email from Krisflyer yesterday. 400K expiring APR 2022. Under normal circumstances I wouldn't have a problem with that despite an overall dislike of schemes with expiry dates ... it is what it is though. However, I really wonder if things are going to be anywhere close...
www.australianfrequentflyer.com.au
Four or five phone calls from memory over a period of several weeks with escalating levels of irritation displayed but they refunded the miles with the explanation being that it was a system error. Whether that’s true or not who knows.