This company says the doctor ordered equipment for...

This company says the doctor ordered equipment for my husband after knee surgery. We didn't hardly use any of it. They charged my insurance company over $5,000.00. Then dropped the bill down to about what the insurance paid. I'm trying to pay them through my bank so I have a record of the payment. And my bank can't verify there address. Tried to find them on Google map but the building has no name on it and it looks like it's in with a pharmacy. DON'T TRUST THEM!