Harmony test

Hey ladies, just curious from those that had the Harmony test what's been your experience? Insurance is saying it isn't covered because I'm under 35 and have no history. I've had 4 miscarriages but apparently that downer matter. I called the company and they said they appeal to insurance and then the max I'll pay will be $800, is this your experience? Just thinking of this goes tony deductible I might as well.