There is no defect in manufacturing. Lol. It's aluminum that is pretty thin. Aluminum is a SOFT metal. It will bend and flex. If your phone is bending, stop sitting on it or applying pressure. It's that simple. Lastly, metal doesn't spontaneously bend. An outside force is needed. An ass for example. A side pocket when you sit and your jeans are too tight.
Some people have no idea what they are jabbering about. Plastic phone, it cracks/scratches. Glass phone, it cracks/scratches easy. Metal band scuffs. All aluminum glass phone, it bends/scratches too easy.
BLAH BLAH BLAH BLAH BLAH. Go get a plastic phone already and shut up.