I had a similar experience with a company who was contracted by a carrier recently. They requested that at my convenience could I please copy all the information for the last 3 years on 65 charts and send it to them. I said I didn't think like that seemed like something I wanted to do and pointed to the clause in my contract which stated I agreed to grant them access to the charts at THEIR cost. I also reminded them that the same contract states that I have a right to the results of their audit and that I would be entitled to payment for charges I had overlooked. I haven't heard anything for a while.