Who called from 3864474875

Recorded message @ 4:59pm Monday 9/15. Important message telling me to press 1 to lower my rate for something.

Spam credit consolidation call

Just had a missed call from this number.  When I tried to call it back it said it wasn't in service.  Grrrrrrrrr!

Just got a call from this number too..A return call said it was not in service.

Just got the same call as Jack-a return call said it was not in service.  How is this not illegal?  Are they using fraudulent phone numbers?  I called Verizon to see how to stop this, and Verizon is not interested in helping, so I registered with the Do Not Call Registry.  We will see.....