called me every morning for the last several days, nobody is there after me pick up the phone.

Who are these people?!? There is a very long list of numbers with the 313 prefix, followed by 000. What in the world can they possibly be doing with that many numbers?  Outrageous.

Called yesterday at 6:30ish and again this morning at 7:30ish. I didn't pick up, no messages left. Way too early for me to be receptive to wgatever they're selling.

They called and left a voicemail that said "hi this is Brenda from AT&T business sorry that I missed your call will try again later." There is absolutely no reason that somebody from anything called AT&T business should be calling me. I'm going to assume that this is some sort of fraud because nobody should be calling me from anything like that.