I had a HUGE battle with my insurance co. over a LASIK benefit that they touted at a company meeting. Saying you have a benefit available is one thing. Getting *paid* by the insurance co. is a whole other thing. It took at least 5 hours of phone calls, waiting on hold, talking to supervisors, calling my company rep., calling the eye doc's office, filling out additional forms, having the eye doc talk to the insurance co., etc. But I did get paid in full after about three months.
Insurance is a racket. Getting them to pay is like pulling teeth. The LASIK thing was very educational for me. I've come to the conclusion if I ever have a major illness I pretty much going to need a lawyer
Edit: noted, my post was not about rescission, but still