Best AnswerWelcome to the forums @Tuppermal
These devices pair to the email address. Fitbit can see more on their end of things, so it's best if you contact customer support at this link - click
There is a phone number for the USA, an online chat option and web based email for those out of the area.
Keep us informed.
If someone found the tracker and links to her / his account, it's automatically unlinked from your account. The trackers aren't locked to a account, no confirmation is send to the email the tracker it's linked to if wanting to set up to another account..