Oak Systems Key Business Solutions Misrepresentation of Company Affiliation Pennsylvania

We recently upgraded our Pitney Bowes machine in the summer of 2018. Shortly after upgrading, I received a call from Oak Systems (whom I already knew lost their license as a Pitney Bowes new equipment reseller).  The gentleman on the phone identified himself as Jim Caldwell from Key Business Solutions.  Mr.Caldwell proceeded to tell me that he has scheduled me for a preventative maintenance call.  Now I am on high alert since they've never once performed a preventative maintenance call over the course of several years.  I then informed Mr. Caldwell that we already upgraded with a licensed Pitney Bowes representative.  Mr. Caldwell immediately became irate and began screaming at me, telling me that I have a contract with his company and they will sue me for breaking it if I don't immediately send back the new machine.   Needless to say I was very shook up and ultimately hung up the phone on him.  
 
After this crazy phone call I researched Oak Systems.  It turns out that my instincts were dead on.  Oak is run by 2 gentleman from Philadelphia with checkered pasts.  Martin C Klagholz and P. Gary Shank are the ones in charge.  I learned that they have been charged with Fraud, Racketeering, Tortuous Interference, and several other criminal acts.  As I dug deeper, I learned that Gary Shank, and both Martin C. Klagholz and his father (who shares the name Martin) have been in trouble several times with several parties for similar crimes.  I am not at all surprised by the behavior of their employee, Jim Caldwell after reading about the criminal nature of their business practices over the years.  
 
Beware and stand firm against the abrasive practices and criminal practices of Key Business Solutions and Oak Systems.  Corporate criminals will do and say anything to line their pockets.  I'm so glad that I trusted my instincts and did not contract with Oak Systems / Key Business.