Smart Diamond members will receive 4 free passes annually from the date that you register an account with Priority Pass (not per calendar year).
For example, if you registered on 18/10/2022, you will have 4 lounge passes until the membership renews the following year on 17/10/2023.
To find your renewal date, check the “My Priority Pass” tab in your Priority Pass account when logged in.
More information on the airport lounge passes can be found on the Priority Pass website.