I received a call at my place of employment from a man who stated his name was Martin from Mason Bridgewater arbitration.  He also left a vm message which I have saved stating they were filing suit for bad check and wanted to talk to me.  I said I do not accept personal calls at work and to put it in writing and mail.  He said he was immune from the laws pertaining to "no calls at place of employment" and demanded to speak with the boss.  I hung up and he called right back.  He threatened me stating a process server was coming to my place of employment.  I hung up again .  I did a phone call search on both numbers he provided in the voice mail.  Calls are coming from New York location (Cattaraugus, Chautauqua, Niagara Falls).   He also gave 855-272-1370  ext 572 as well.