When you are getting billed by a medical service but you are sure that your insurance already paid or some account under insurance, such as an HRA, already paid, call your insurance company. Once upon a time, when I naively thought I could resolve such matters myself, my family called Labcorp three times without any resolution regarding two bills that had already been paid through my HRA. The first call was handled by someone who was tricked into paying a second time for the billed service on one of the invoices. I made the second and third calls. In the…