Yes. Whenever a bag's status is changed to Returned — from any of the bag reports (single row or bulk), the bag's own page, the customer's order page or the checkout page — Sprwt sends the customer an email confirming you have their bag back, and, if the bag type charges a return fee, that the deposit was credited to their balance (the fee line only appears in the email when there was a fee). Re-saving a bag that is already Returned does not resend it. This email appears in System Emails as Bag: Returned and can be switched off there without affecting the balance credit itself.