AT&T Activation issue iPhone 5s
Just received my new iphone 5s and cannot get past the activation screen. After turning on the device it asks for the billing zip code and last 4 of account holder’s soc #. I have entered the correct information several times and verified the information with AT&T. Have called AT&T and Apple, however each blaming each other for the issue. I have used recovery mode through iTunes to update and restore the iPhone 5s to the most current 7.0.1, which made no difference. The sim card is valid and active in the 5s, as I can remove it and insert it into my old iPhone 5 and place and receive calls.
After entering the correct billing zip code and last 4 soc #, I’m greeted with this message:
AT&T was unable to verify your identity using the information you entered. It could be as simple as a typo. Please re-check your information and try again.
Neither AT&T nor Apple has a solution
iPhone 5, iOS 6.1.4