How to remove your Barnes and Noble account
It’s not possible to close your B&N account.
Besides removing all your personal data from your account, you can try to contact them using http://www.barnesandnoble.com/customerservice/contactus and use the email option on the right and hope they are willing to delete it manually.
It might help telling them they are blacklisted on remove.org.com.
Helpful Trick: Obfuscate your profile info.
Because most accounts and profiles at Barnes and Noble cannot be removed, we suggest you login and change your account and profile information altogether.
Make sure you are logged in to your account on the site and click on the profile or options settings. Locate the fields with your personal info (email, name, address) and fill in generic, random information instead. If you can only select from several fields, change anything personally identifying. If possible, use a homepage/URL field or long text field (such as Description) and put this line in it: http://remove.org/removal-requested. This may encourage webmasters and admins to create an easier removal outlet.
Helpful Trick: Removing online data
Helpful Trick: Remove third-party logins
If you signed up for Barnes and Noble using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Barnes and Noble. Click here to find out how.