My dad bought me an iPhone 5S Case (brown) whilst on a business trip in San Franciso. He brought it back to me in London, and I've had it on for just over 2 weeks (2 weeks on the 13th). It now looks terrible. It's gone from a nice, light brown, to a dark, black-tainted pile of s***.... I can't put into words how disappointed I am. Black scuff marks round the edges, and the case itself has generally become a few shades darker. I am the most paranoid user... I don't use it with really dirty hands, nor put it in tight pockets (it's always either in a loose jacket pocket or on my desk); so I know it's not a fault of mine. I was just wondering whether it would be possible to return it at a store in the UK?