You can manage all of your account information in Account Settings.
To access your account settings, click Settings in the upper-right corner of Seller Central. Click Account Info to see details about your deposit and charge methods, business information, shipping and return settings, and tax information.
If you want to temporarily deactivate your listings, see Listing status for vacations, holidays, or other absences. If you want to permanently close your account, see Close your seller account.
To learn about Quick Start Guide > Intro to Seller Central, watch this Seller University video: