Same thing happened to me.........
Hey, I too experienced this, but I have not had my card charged for my 3G yet, only for my case. They took out the 40 bucks for the case, then like 3 days later it was back in the account. I called Apple and the guy told me that apparently they do a bunch of pre-approvals. Initially they will check the account with a $1 pre-approval. Then, and I'm not sure of what dictates the timeline on it, they authorize the amount on the card, but the Apple rep said that if the item has not been shipped within 3-5 days, then the charge will simply drop off and the money will go back into the account. At which point they will charge again when the item ships. He said that this was to avoid reserving money from people's accounts or cards, as they feel it is not fair if they are not immediately shipping the item. I was still somewhat confused after talking with him 😕 but he reassured me that all is well and that the items will be charged when they ship. And if through my explanation you are more confused than when you started.............then welcome to my world. MUHAHAHAHAHAHAHA
Awww, I just remebered I don't have my 3G, now I'm sad again. 🙁