The price you pay for this radon test apparently includes the test fee. But you are still required to pay postage. Apparently the post office has enough trouble delivering the envelope that the company has an announcement about you maybe wanting to use FedEx or UPS instead of the U.S. mail. When I mailed my package, sure enough, it came back 10 days later for postage, which maybe fell off during processing? I put more stamps on and remailed it. A few weeks later, I got a letter from the company saying the radon test was too old to process. But here's the kicker - no refund for the price I paid! They collect the entire fee up front - $16 or so, and then never have to do the test or report results. So that made me feel scammed. How many of us really has $16 to waste?My two cents worth. Here's what I know: My $16 is gone, and I know nothing about radon in my house.Christine