Huh, jaguar, The sellers didn't promise me anything when I bought any of mine. I just read Dr. Clark's book, did what she said, and got better.
What claims did they make to you? I'm just reporting my success with the Clark protocol which includes the zapper. My proof? I think getting 'cancer' when I stopped zapping for a couple years, but still doing the herbs is enough for me to know it's absolutely necessary. I started zapping again, got rid of the fungal infection the parasites brought in, and voila', no more 'cancer'.
I couldn't have used any of Beck's stuff for this though. Anything of his doesn't kill fungus unfortunately, from my experience.