Contacting an Amazon Seller. If you have an order placed with an Amazon seller, sign in to your Amazon account, click the "Your Account" option, and then select "Your Orders.". Click the "Contact Seller" button next to an order, and then check the radio button next to "An Order I Placed.".How do you get a seller account on Amazon?
To set up a seller account, one must first create an Amazon account if it does not already exist. When setting up a new Amazon account, a seller should click on Amazon.com and enters his email address when prompted. When prompted, the seller should complete all fields, including name, email address, and phone number (optional).