• Open your Apple Wallet App
• Tap on "View Expired Passes" (you might need to scroll down if you have lots of passes in your wallet)
• Select your Season Ticket, and then select 'Unhide'
• Go back to the main Apple Wallet screen
Please note, you must do this directly in the Wallet App (by clicking on the Wallet icon on your home screen) instead of access the wallet via a shortcut (i.e. by double clicking the side / home button)