I chose to "replace an already existing phone" on my AT&T account with this new iPhone. iTunes let me do that, and all it showed is "adding the data plan" as if my previous phone wasn't an iPhone. It said that this might replace my former Data plan, and that it's starting a new 2 year contract. However it's the same phone number, so i'm not gonna get billed for 2 different services, am I?
My old phone is still activated, and is still sporting the same phone number as before. I've now got two iPhones connected to the same AT&T account. Is that how it's supposed to work? Can I have 2 iPhones connected to the same phone line, and not have to pay a monthly bill for each one seperately?
Anyways, when I send the old one back to Apple, I don't want them messing with my AT&T account. Is there any way to wipe clean the SIM card of my old iPhone?
edit: Also, I'm a little paranoid that I might've put the old SIM in the new phone in the end (not that it matters), even though I know I did no such thing. I guess I have a slight case of OCD or something. Anyways, one of the SIM's has a "G" after the first group of numbers on it, and the "older" one doesn't. Can someone confirm that on newer phones there is a "G" after the first number that appears on the SIM card? Because the number below that is 3000 something on the new phone, and 4000 something on the old phone. That would imply that I mixed them up, but there is that G thing, so probably not.