I am already subscribed to Epic/Movie packs but I am being redirected to subscribe to Prime Video page.
If you see the ‘Subscribe to Prime Video’ message on the Prime Video app, it means you have not activated your access through Astro. Please press the Back button on your remote and follow the steps provided here:
https://support.astro.com.my/question/i-have-activated-my-prime-video-access-with-astro-how-do-i-log-in-and-watch-prime-video-on-my-ultra-ulti-box