866-323-8596

I received a bill as if they were a creditor from my phone company.  I called my phone company and they do not have me in collections.  The letter is a fraud and the phone number doesn't allow you to speak to anyone and just hangs up on you.

The same thing happens to me, I try calling back and they don't answer... I want to report those number... Thank you

I received a phone call from a collection agency stating that I owed $17.03 but Verizon says I do not.  When I call the number they left there is no answer - just keeps saying "call back"

same thing. letter says they are collecting for verizon, when call no answer

Looks like lots of good information here:  https://800notes.com/Phone.aspx/1-866-323-8596
Simply follow the second link.