I recently bought a piece of hardware from Vodafone. It was not faulty but the t&cs for use were not declared properly on the website and by chance I found out from a third party that they were inadequate. I didn't mess about with CS and simply wrote a brief letter to the chief executive explaining the aforementioned and requesting my money back plus suitable compensation. My suggestion is that you write a brief letter adding how disappointed you are with Vodafone CS especially in view of the rave reviews about the rejuvenated O2 from friends. Then carry on doing whatever you're doing with the rest of the empire. A shotgun (every avenue) is the best way with these companies.