I got an iPhone and put it on pre-paid for now to see how I like it. I like it...and I want to move it onto my parents family plan. Problem is....everytime I try to call AT&T after 9pm...the damn customer service line is closed. If I call them in the afternoon it's gonna cost me 13 cents a minute and I'm sure I'll be on for 30 minutes. So the big question is this....can I just deactivate the SIM and restart the activation through iTunes? That way I would just add it to the line and give all my moms info without having to deal with confused AT&T folks. In the afternoon. For 13 cents per minute.