So the back of my iphone 4 is shattered, and its not that big of a deal, but I'd like to get it fixed so I can sell it eventually. I've heard many people say they will replace it for $30, but I just called and the guy on the phone said they would just sell me a new phone fore $150. Is it just that some people in the store are being nice by doing it, even though its not a rule or..? I think I'll try my luck in the store, but should I make an apt. or just go in? Thanks in advance!