How to contact the Billing department ACC Support August 05, 2021 20:46 Updated For questions regarding billing or paying an invoice or changing your ACH payment information Please reach out to the the email address listed on your invoice. For any new orders, invoices are sent from firstname.lastname@example.org. If you have purchased BuildingConnected before, it may show email@example.com. Related articles How to contact Customer Support Why is my account locked? How to remove your account What to do if you are not receiving email notifications from BuildingConnected A bidder said they submitted, but I don't see it on my end. What is going on? Comments 0 comments Article is closed for comments.