Why get upset with them. If you answer the call, you still have the upper hand.  HANG UP!!!!!!!! I just let my answering machine take any number that I don't recognize. So just don't answer! But as I said, the other option is to hit "HANG UP" or OFF on the phone and they go away.

Caller ID shows "Bankcard SVCS".  No message left.

Didn't answer sure it's a scam of some sort

They have been promising this is my last chance for years.
I routinely get a call a day from a telemarket  scammer somewhere. Got no time for violation and intrusion.

I recently received a call without a message from this #.  

I don't answer my home phone any more due to junk calls but I now have Comcast service that allows:
- Blocking all without caller ID
- Forwarding all to a given #
- Forwarding up to 12 individual #s to one #
- Blocking up to 12 individual #s

I just started a new approach, forwarding all calls (including those without caller ID) to firms that litter my porch with flyers.  Since I have official decals (from my Village) displayed that prohibit this, all of these firms are in violation.  My current target is Arce Garage Doors & Construction, a firm that pasted their flyer to my garage.  I'd appreciate others forwarding junk calls to them @ [removed].  This type of action should waste time & effort for both guilty parties.