Very upset with US Med and disappointed. They shipped out a prescription without first checking with insurance if it was covered. Turned out they sent out before being eligible (still had supply on hand), and now the claim is being denied, so they canceled us! They said they can't know if it will be denied until they bill, yet they bill one month later! Any other prescription before it even gets dispensed first goes through insurance to make sure covered, and that is how they know how much to bill. Incredibly irritating. And to top it off, the customer service representative (Minush) was incredibly rude and actually yelling at me that she can't help me.