Perks Points expiration
In the Perks program, your points will expire 12 months from the date of earning them. The 12-month time period will begin on the date you completed the transaction (not the date the points appear in your account).
On another note, all of your points will expire after 6 months of account inactivity (no rentals / purchases).
You can go to https://www.redbox.com/myperks to get a closer look at your points balance and earning history.