When signing up for the app with an Apple ID, you can either choose to share your personal email address with the app or hide it.
If you have decided to share your email address, the rewards you redeem will be sent to the address shown in the My Profile section of your SavvySaver app.
If you have decided to hide your email address, the reward will be submitted to an @privaterelay.appleid.com email address and be forwarded to the email address connected to your Apple ID. To check what email address is associated with your Apple ID, please go to your device settings and select the top option.