Can't activate after installing iOS5 on iphone 4..PLEASE HELP!

Question

Went to update my iPhone 4 on Thursday, 14th. This is a phone that I have been using without any problems since the release of the iPhone 4. At this point I am using my PC (I have also tried on my Mac), so I download the new iTunes 10.2 or whatever the latest one is, then I download the iOS5 for my phone, then update.  Well, it gave me an error half way through and said that I needed to restore.  That fine cause I just backed eveything up, so I hit restore and everything seems fine until it trys to activate. Here's what come on the iPhone screen:
Welcome Screen
Select a language - english
Country or region - US
Location Services - Enable Location Services
Wifi Networks
Activation your iphone (it may take up to 3 minutes to activate your iPhone)
Activation Error - Activation request could not be completed.  If problems persists, please contact customer care.
In iTunes it has a similiar error that says: "We're sorry, we are unable to continue with your activation at this time.  Please try again later, or contact customer care."
I called Apple that night and talked to someone for about 2 hours and tried everything he knew to try and fix the error with no resolution in the end.  He ended up transfering me to his supervisor and I talked to him for about 30 minutes until he said he would have to talk to someone else the following day and call me back.  He did call me back the next day, but only to tell me that they were already working on it and it should be resolved by Saturday night. He told me to keep restoring it every 2-3 hours and eventually it will finish activating.
Well needless to say, it still still wasn't working by Sunday, so I called them back and talked to another supervisor and he said there was nothing he could do and that I just have to keep trying because they are already working on it.  That guy was kinda rude so I just decided I would call back Monday and get someone else.
Well, on Monday I called AGAIN, and get a supervisor who said he was aware of the problem, but that it should have been fixed the middle of the previous week.  He said he would e-mail the person who was working with the problem and see what else I should do.  He also said he would be calling me back today (now Tuesday, 18th) after I get off work and tell me what that guy says.
I have tried all these things on both my PC and Mac: restarting the computer, restarting itunes, restarting the iPhone, restoring the phone (like 100 times), reauthorizing the computer, restarting my internet (but it works fine for everything else), taking the SIM card in and out, connecting my phone to the internet and try activating without the computer, and calling AT&T (not a problem on their side).
I don't have an apple store anywhere close or I would just go there.  I am getting so tired of dealing with this crap, and not having a phone (this is day 5 with a brick for a phone).  I am just wondering if ANYONE can help me at all!! I am desperate and will try anything, PLEASE HELP ME!!!

Answer 1

has anyone solve this problem? i upgraded my iphone 4 to 5.1.1 and now i can see only ""We're sorry, we are unable to continue with your activation at this time.  Please try again later, or contact customer care."
i tried mani sim card, laptops, wifi. but for 7 days the problem is still exist....
Please help me!!!