Reliance Standard should be paying for my STD claim, but they won't return my calls.

Hi all, my name is Mark Ozimek, I was employed at Lehigh Heavy Forge which is the old Bethlehem Steel plant in Bethlehem PA. I was out for a shoulder operation for a rotator cuff tear. The workman’s comp. insurance turned it down as I tried to fight it, so STD wouldn’t pay (Reliance). Now the judge in the case had turned me down agreeing with the insurance company, so in this case Reliance is supposeed to pick up the payment for my STD claim that I had filed with them and this case worker Donna won’t even pick up the phone to call me back. Please help, what do I do?