Utility Customer Complaint Filing System Online Public Advocate Customer Complaint Form - only to be filed after first contacting and trying to resolve the issue with your service provider. Contributed by: Division of the Public Advocate Last Reviewed: 7/14/21 http ://publicadvocate.delaware.gov/file-a-complaint/ Last updated on July 14, 2021. Public Utilities/Energy How helpful do you find the information on this page? Not helpful Somewhat helpful Very helpful Save Please tell us why this page wasn't helpful N/A Not related to my issue Not enough information Unclear information Comment About text formats Plain text No HTML tags allowed. Lines and paragraphs break automatically. Web page addresses and email addresses turn into links automatically. Save PDF Table of Contents