How do I use Air Asia "Big Rewards"? I live in HK. I downloaded the app and there was absolutely NOTHING in the "USE POINTS" page.

(Updating this)

I emailed them and have been going back and forth by email for about 24 hours now. The good news is that they respond quite fast. The bad news is that 1) they didn't answer my question, instead asking for a screenshot of the email which said my points were expiring, and when i sent it (very high quality), they said they could not see it (???). When I finally gave up entertaining that line of approach, they sent me a link to the page I started with on their web page which says to go to the app and click "use points"... exactly what I was doing. Seems like they are deliberately trying to avoid actually answering the question!