I need to release my medical records to my Insuran...

I need to release my medical records to my Insurance company and after two months of waiting I haven't had any luck. When I call the Medical Records Department they keep saying they are denying the release because I don't have a signed release form. I obtained one and sent it to my doctor's office and now months later they say I need the paper signed again! So frustrating as any income I received is based on these medical records. When you go to Inland Hospital medical records online, They request over $100.00 to received your medical records. I need help to obtain these records. What Can I do?