Number called today around 10:00. Claims they are with AT&T and wanted to 'review' the bill to see if they can save us some money. Told her I don't HAVE At&t... she was like... hmmm weird cause I am looking at your bill.....I was like 'What bill.. we don't HAVE at&t". Then said something about seeing an adress of our other office. Told her to "call that office then".
Tried calling back the number afterwards, and gives me a message: "we're sorry, you've reached a number that is disconnected or no longer in service".
So I suspect it is another one of those companies claiming to be AT&T.