Frisbee points do not expire for the duration that your account is active!
If your account becomes inactive (i.e., you have not scanned a receipt or used points in your account within the prior six (6) months) or you choose to delete your account and still maintain a point balance, those points will no longer be accessible after such inactivity or your account deletion.
Please reach out to support@frisbeerewards.com if you have any questions about this!