If you returned the Fitbit® that you earned through the Lark program, your original Fitbit® redemption code will become available for you to use to redeem your new Fitbit® once the return process has been successfully completed.
Please contact the Fitbit® Customer Support Team anytime via email at cwsupport@fitbit.com if you have any questions about your return. You can also contact their team by phone at (844) 534-8248 (available Monday - Friday, 4 AM - 9 PM PST). This will connect you with a specific team who resolves issues with Fitbit® devices redeemed from Lark.