And it happened to my friend, too.
Some of you have read some of my posts, so you know that I have been denied coverage by an insurance company that knows my employer will be switching coverage. A friend of mine also tried to get weight loss surgery and was told she met all of the requirments EXCEPT she needed to see a dietition 3 more times. This was something they never mentioned to me!! They are just adding conditions to getting the surgery so they don't have to pay out for it.
And if I say anymore about insurance companies at this point, my language will become quite inappropriate.