Although they are a law firm collecting a debt where does the line not only are they hiding behind this telephone number....they are also sending you important documents via USPS in a plain white or yellow envelope with no return address....this is suppose to be a law firm.  They are hoping that you disregard this letter and throw it away for junk mail.  I have also been threathen by one of the attorneys calling from this telephone number stating that jail was going to be the option if I didn't appear in court.