Since retiring from the military I changed healthcare and no longer receive or use CPAP supplies from Optigen also known as Lincare. I turned in this equipment 9/1/2022 and the company continues to bill both my insurance and myself for equipment no longer in possession. I have reported insurance fraud with my medical coverage provider and opened a BBB claim that has went unanswered to date. When contacting the Optigen/Lincare I’m frequently bounced around departments from billing to supply and one customer service agent to another as the agents behave clueless in an attempt to collect fraudulent funds from a permanent disable veteran to continue to monetize their business. I sincerely hope that the insurance providers will seize to use Optigen/Lincare as one the approved CPAP suppliers and they do not have the best interest of Veterans in mind. All customer service agents I have spoken to since 9/1/2022 have fabricated actions they took on my account, to include returning equipment, refund for overpayment and continue to bill for supplies today 5/18/2022 9 months after equipment was turned in. This has been a frustrating experience as they send letters of past due amounts for unauthorized équipement.