I was very pleased with the laboratory's responsiveness, in regards to answering questions I had about taking samples. They were very good in communicating how best to sample the air on both the finished and unfinished sides of our basement. However, where I was disappointed was when I received the literature inside the package, it stated that I could not attach any paper or label to the vials, to indicate from where the samples were taken. In effect, even though I had stated on the paperwork, that one vial was placed in the finished side of the basement, and the other in the unfinished side, when the results came in, there was no way of knowing which results matched the side of the basement that required action. I called and expressed my concerns, and they mentioned that the highest reading, more than likely, came from the unfinished side. That would seem logical, however, I had left the back cellar (unfinished) door on the finished side open during the test. The back cellar may end up being a bedroom. I can't take the risk in not knowing. They then suggested that I have the tests done again, but I don't think it's fair that I be recharged. As it is, I had to block off the cellar, where we do laundry, etc., for two and a half days. It's an inconvenience to the family. They then told me that I could have marked the bottle caps "1" and "2," and I certainly would have, had it been mentioned in the paperwork. When I asked them why it wasn't, their response was that "it would just confuse people." I disagree...and on my part, lots of time and energy has been wasted...and I still have no definitive results. The company needs to put more effort and care into meeting the special needs of its customers.