File your claim via fax or mail. Consider filing online for faster claims payment!Simply select "File Online" below and follow the instructions. Please provide a date and complete description of your accident. Aflac provides supplemental insurance to help pay out-of-pocket expenses your major medical insurance doesn't cover. Get started with a quote today! You may contact Colonial at 1-800-325-4368 and AFLAC at 1-800-992-3522.). To file your claim via fax or mail, simply download the appropriate forms below, and send to us with all necessary supporting documentation. Ive already settled with the insurance but forgot to turn in the restof the paperwork to complete claim with Aflac. Learn more about MetLife employee benefits and financial solutions.