DEP now offers an easier way for water and sewer customers to file and resolve billing disputes. Simply fill out a Customer Dispute Form online, print, and send the completed form to DEP’s Customer Complaint division. The new, standardized form will enhance the dispute resolution process, and ensure that all billing matters are resolved quickly and efficiently. For more information, contact DEP’s Customer Call Center at (718) 595-7000 Monday through Friday, 9AM to 6PM, Saturday, 9AM to 2PM.