Assuming for the sake of argument that I did decide to return my iPhone 4 (due to signal/reception issues; due to blue image / white balance error in camera software / etc). I know that Apple says there is a certain timeframe to return, so I'm not worried so much about that. What about AT&T though? For starters, when I bought the new iPhone 4 I got charged a one-time activation fee. (I think it was $18 or something) I also had to sign up for a new 2-year contract. If I return the iPhone 4, will AT&T switch me back to my former contract AND credit the $18 activation fee?