Great Benefit Emulators (See The Rainmaker novel/film). Mircromanaging my treatment plan and denying the prescribed meds because of the price alone.
Despite the expertise of my specialists, after 3 years on the right combination of meds, Great Benefit, I mean UHC, wants me to try cheaper therapies that we have already tried without success. My health is clearly not their concern, just the cost of my health.
Customer service reps: it's always a different dept that must handle some other detail, an endless wait to be transferred and an accidental disconnection during the transfer. Every time I call.