Download the complaint form here. NOTE: To send multiple files, zip the files first and attach the zip file.This sample letter has choices to help you build your letter. When you write, pick the words that describe your situation. In this post, we discuss the ERISA claim process, appealing your ERISA claim, filing an ERISA complaint, when to hire an attorney, and more. Important information. Disclaimers. Consumer Action offers a sample complaint letter and an email complaint template. You can cut and paste these documents below. Cited a single decision holding that ERISA preempts a malpractice or professional negligence claim against a service provider to an ERISA plan. To date, responding to complaints has essentially been a customer service function.