SAMPLE - FICTIONAL DATA March 2, 2026 Billing office, Brightwater Healthcorp Inc Subject: Billing dispute: the same service billed twice Dear Brightwater Healthcorp Inc billing team, My statement for account 44932556 lists the same service twice: lines 1 and 2, code 01960, on February 11, 2025, $4,944.00 each. Please remove the duplicate and my $196.82 share of it, as my insurance statement shows. Please correct the balance, or explain it in writing. Please answer in writing within 30 days. Attached: Copy of the Explanation of Benefits Sincerely, Daniela Castillo 9349 Seagrape Ln Apt 717 Bayside, FL 33067 (954) 555-0161