How do I update my billing information? Dealerware May 06, 2019 23:19 Updated Follow To update billing information for your dealership, please send the updated billing information along with the dealership name to firstname.lastname@example.org. Related articles What are the invoice payment options available to my dealership? Where can I obtain a W-9 form? What is the Dealerware invoicing process? How is my dealership billed for tolls? How do I add a new customer? Comments 0 comments Please sign in to leave a comment.