Your points will expire at the end of the month after a 12-month period.

For example, if you earned 300 points on 1 Mar 2023 and 20 points on 10 Mar 2023, your point total of 320 points will expire on 31 Mar 2024.
 

For example, if you earned 200 points on 8 Sep 2023 and 50 points on 25 Sep 2023, your point total of 250 points will expire on 30 Sep 2024.