I have done this earlier today and it is exactly as you say. All they can do is file another ticket with AT&T, but multiple tickets coming to one ISP from anoth

I have done this earlier today and it is exactly as you say. All they can do is file another ticket with AT&T, but multiple tickets coming to one ISP from another ISP mean more than calls or tweets to the AT&T customer support line, so here's hoping! Some people on Twitter report this problem going back all the way to November. Glad it's finally getting attention tonight.