AT&T Someone got on my account + ATT promised to investigate In 48 hours. NADA but attitude from customer service (1 hour on phone and chat) Nationwide

So ATT U-verse tech support tells me on 1/11 that my IP address is linked to another person whom I did not autorize.  They can't tell me who it is. Law enforcement tells me the actions taken by that person constitue fraud using my e-mail (But not At&T).  I was told by tech support that ATT had to get back to me within 24-48 hrs.

48 hours later I called tech support who bounced me to TOI and back to tech support.  The script goes "ATT  is noresponsible for e-mail." They will not answer a direct question. 20 minutes wasted it's now after hour so I chatted and wasted another 40 minutes.

The &&^%&* supervisor told me he'd get back to it the next day at 4PM!

I have had my on line identity stolen, can't access e-mail, FB and of course I know better than to try on any financial sites, brecause I am a retired financial analyst and I keep up with the latest on internet security.  I called local law enforcement to tell them I'd be filing a report tonight.  I had to call back and say ATT could care less.  Then I found the officer was an identity theft victim as well.  He, at least is empathetic.  I had my credit card ID stolen recently.  I have filed the preliminary IC3 (FBI) report about this and need the investigation report finding (who did this) to file a police report to proceed. I don't give up when customer service spins me aroud, I just persist until the service is provided.