713-581-1934

leaves no message

Received a call at 8:15 AM, after many stupid message left in my answer machine, anyway The said: it's South West Credit System, trying to collect an AT&T unpaid bill.  Funny part: we are AT&T Loyal Customer for more than 7 years and we don't have any late bill w/them! When our bill is ready AT&T notify us via email.
I told the man that he has the wrong person, because we do bussiness w/AT&T and his answer  "but it was a new contrat for internet services" I replay, well we have a phone package with everything include, why are we trying to get more internet? So he just hung up!
BE AWARE SCAMMMMMM!

I received several calls from this number on my cell phone, but the caller never left a message.  I returned the call only to have them ask to speak to someone else and then ask if I knew the person.  These people are scam artist.

The munber 713-581-1934 called my cell phone many times. They wanted to talk to Robert. it's South West Credit System.  I called back and I told they that I am not Robert. They call me again. I don't how to stop the call. May I call Police department or some place to