All Points issued have one-year validity from the date of issue unless you unsubscribe from your membership.
Even on pause, your Points earned do not expire prematurely (before its one-year validity). However, you do not earn new reward points when you are on pause.
If you choose to unsubscribe, the Points you accumulated will expire immediately after the date you unsubscribe. You can check your Points transactions in the app Profile > Rewards Programme