I recently found my iPhone 4 camera always give me a green spot in my pictures. So I ended up in the w14th apple store NYC at 9am. The lady from genius bar didn't even intend to do hardware test. She took a look at my pictures and said it's not an issue. She denied my request for replacement and wouldn't do anything to help me with this. So I walked out with anger and thought I might try another store. I came to soho store 1 hour later. The genius took a look at same pictures and said he has seen this issue before and will run a hardware test then get me a replacement. So in the end I have my iPhone 4 simply replaced at soho store. I'm just confused why the genius from w14st store refused to acknowledge the issue and do something for me. She could at least do some hardware test then tell me if it's an issue or not. I wonder is there any individual store policy for each store?