Who called from 3132218070

Also receiving calls from this number 3-4 weeks now.  Same as above, the line goes dead if you answer in person saying "Hello, hello" then they disconnect.  If you call back says to press #1 to claim your Walmart gift card then the line goes dead after you press #1.    We also have an unpublished number.

The appropriate question is why would any legitimate or scam business do this at all??  I am more concerned this is some type of (criminal?) enterprise trying to see when a live person is home/answering etc.  Why else would they repeatedly hang up when they actually get a live respondent on the line??

This is quite annoying, However, 313 area code is in SE Michigan. Not just Detroit.
I am sure that scams are Not only from
This area!

This number can be blocked. Check your phone directory for instructions.

Repeated calling; never leaves message

Called about a Wal-mart gift card, that's when I hung up as usually they're shady calls.