Impossible to verify identity?!

I have been trying for days to sign up for AT&T. My original request was cancelled because they could not verify my identity. My guess is that because I just moved, my billing and mailing address were different. But working with the store has been nightmarish. I've spent close to 12 hours while employees try to get through to the correct departments. Most attempts are met with a dropped call/disconnection.

I verified that ALL my information is correct with all three credit companies. Nothing is wrong. No one can help me and no one can tell me what additional info I need to provide to get past this.

I would run to sprint, but AT&T is the only company with acceptable cell coverage in the area I am moving to. And I need to work.