This appears to be part of a two-pronged scam.  First, calls are made offering to settle past due debt(s), although the creditor is never identified.  There is no paper trail, no correspondence, simply repeated calls which include threats of lawsuits and even arrest..  A friend, unfortunately, fell for the scheme and, as instructed used Green Dot to send in a total of $456.00.  When further demands for more money were made and the money not forthcoming, calls began coming from 347 757-5146.  A male using the name "Jeremy" began demanding $756.00 and threatened arrest if the amount was not paid within 2hrs.  When the money was not forthcoming, the calls increased in frequency and the threats of a lawsuit and arrest escalated.  These people had obtained my friend's full name, work and personal phone numbers, birth date and social security number, made repeated calls to both his work and personal number, sometimes three, four, five times a day, each time demanding payment and stating that, should payment not be made, the "authorities" would arrive at my friend's work place to make an arrest.

When my friend finally informed me of what was happening, I called the 347 757-5146 number.  A female, using the name "Jessica Anderson", answered.  After I repeatedly asked the name of the company, this "Jessica Anderson" claimed she was an attorney of 20years experience  with Latham Watkins and denied, initially, that there was a "debt collections" department.  When asked if there was an employee by name "Jeremy", she suddenly changed her tune and said that "Jeremy" was in debt collections.  When asked if she was aware that "Jeremy" was in violation of both state and Federal laws and statutes with regard to debt collection practices, she be extremely defensive not to mention belligerent.  She did, however, disclose the payment history made by my friend via Green Dot, which confirmed to me that she and "Jeremy" were part and parcel of this two-pronged scheme.

I have, so far, notified my state Attorney General, Criminal Fraud Division,  the local police, the New York State Attorney General, spoken with representatives at Latham Watkins who are aware that their company name is being used by these thieves.  In addition, I have notified the FBI and will be corresponding with Green Dot as well as the cell phone carriers which service the various phone numbers being used by these thieves.  

DON'T FALL FOR THIS SCAM!!!  Your first hint should be that, in the United States, one cannot be arrested nor imprisoned for debt with very few exceptions!  Legitimate debt collection agencies do not deal with a client strictly by phone and are subject to both state and federal laws and statutes and must comply or face legal penalties for non-compliance.