Bests & Worsts Reviews from Amazon

Got this pan and loved it. It heated very nicely and evenly, did not stick or anything. Within a week it warped and the bottom is no longer flat; as such, it doesn't sit right on the stove burner and gets hot spots and half of it is a lot hotter than the other half. This has made cooking in it quite problematic. On top of that, it has developed a weird white spotty stain in it that's only visible when it's dry (see pictures). I have emailed Cuisinart's customer service over a week ago and have gotten no response at all.