Reseller rights mean that you have your own WHM (Web Hosting Manager) login, so you can log in to the back-end of the server and create accounts with their own CPanel login. You have as much space and bandwidth to provide to these accounts as your plan allows - unless you have upgraded, or have a special arrangement with us. We will allow overselling of the available resources.
The WHM login page is at
Please contact us at firstname.lastname@example.org if you need further assistance.