If you are using the iPad app and would like to restore your previously purchased Expansion Sounds, here is what you can do:
- Install the iPad app.
- On the Home Screen, tap the "Sounds" button and go into the "Store" tab.
- Press the button that reads "Restore Purchases."
- If prompted to log in with your iTunes account, use the same iTunes account that you used when you originally made your purchase and you will not be charged again.