So based on the information that I received from the Dexcom representative (who gave me the retail, cash price without insurance, for our Dexcom "startup" kit) and the representative from Carecentrix, which handles the Cigna billing (who gave me an "estimate" based on Cigna's "negotiated" price), this is how it plays out: Transmitter: Cash price-$599; Cigna "negotiated" price-$716 Receiver: Cash price-$599; Cigna "negotiated" price-$574 Sensors: Cash price (per box)-$349; Cigna "negotiated" price-$452 Carecentrix rep repeatedly used "negotiated" in referring to the price. Ironically, I had actually joked with the Dexcom rep, who told me that I had to contact Carecentrix to find out the price--even though Dexcom was actually selling me the products--that it was "inconceivable" that the Cigna "negotiated" price would be more than the cash price. "You keep using that word. I do not think it means what you think it means." When I called to complain to Cigna, the rep told me she could "apply my complaint to my account." When I inquired as to what that meant--she indicated that it means she will make a note of my complaint, which will be sent to the "complaint department", which will not get back to me. When I indicated that this was ... not acceptable ... they referred me to the Illinois Department of Insurance.