Went to my local Apple store to get my 4S swapped out because the screen had some light bleed and the first half of the screen was duller/dimmer than the second half. Genius recognised it immediately and swapped out. However the new screen he game me was not great either and was very dingy/browinsh yellow. I told him i didn't want this one and to return my old one (whilst unevenly lit was more colour neutral) if he can't do another swap. He refused...saying terms and conditions don't allow...blah blah blah. I told him "You can see for yourself this screen is yellow and not great" to which he agreed but said there was nothing he could do because they can't reverse transactions and you're only allowed one swap if no physical defect. He then proceeded to feed me the glue drying line and to come back in a week if i'm still not happy. In the end i had no choice but to leave the store with a crappy screen. I can't use the phone knowing what i know cos i keep getting reminded yellow yellow yellow. Now i'm worried because convincing a genius of a light bleed problem is far easier than a yellow tint one. I'm tired and frustrated. I'm thinking of selling off the phone altogether and forget owning an iPhone because i really don't like dealing with Apple's CS staff and i'm fed up of the screen lottery bullcrap...and no, i'm not picky. Far from it. I just want a decent screen. Rant over. TLDR: Swapped out iPhone and got something worse than what i went in with but wasn't allowed another swap or to take back my old one. And the new one will likely be harder to get replaced.