iPhone 18 Pro users are demanding refunds after they discovered a color defect around the rear cameras • The malfunction, reported in the "New York Post" a few weeks after the launch of the device, appears mainly in burgundy and black models • Frustrated surfers testified: "It was like this out of the box, the stains don't disappear no matter what I did" • According to estimates, the problem may be due to the manufacturing process and the assimilation of the color in the aluminum