This article will help you manage your Users in the Delivery Trust subscription from a Admin perspective.
Log into your Identillect account via https://identillect.com using the Chrome browser (or Mozilla)
Click on Business in the drop-down menu
On the Overview tab you will see Choose Logo
Navigate to select [the] image that you would like to use as your logo
Select the button to Close the window.
*NOTE: Once completed you will see your Logo replace the Identillect Logo on the top left corner of the screen. If you do not see it then try refreshing the browser so it will update.