US Global Het Delivery LLC US Global Het Delivery LLC is looking for Shipping Agents I did the work and they did not pay me the $6000.00 Little Rock Arkansas

On October 14/2014 I was send a letter of acceptance to work for this company the letter stated that I was chosen for the position and that I would be paid $3000.00 with a 200% Commission on that amount for my work well done.  I completed the work and should have received $6000.00 and they are not returning my calls or emails and now they ave shut off my Task Control System site so I can not receive packages for mailing and so I can not contact them internally.  Here is a copy of the letter I received.  All I want is my $6000.00 to pay my bills as I am unemployed and not working.  Please help if possible.

Hello John!

After  consideration  of  your application I am happy to announce that
you  are  the  person  that  we  were  looking  for! Please accept our
congratulations!  The next step as I’ve mentioned is the conclusion of
the  Employment Contract, which you have to study and sign (please see
the attached file).
 
After  sending  it  to  us  you  will  be  officially employed and our
cooperation  will  start. Please examine the Employment Contract, then
print  it  out,  sign it personally and fax it at this number +1 (501)
613  0211.  You  can  also  e-mail the scanned copy back to me. If you
choose  to  fax  the  Contract, please inform us by e-mail in order to
ensure safe delivery of the fax.

As soon as I get the signed Employment Contract from you, you will get
your  own  supervisor  assigned for you. He will control your work and
give  you  all necessary instructions during your working process. His
name is Gregory Polanski.
His  e-mail  is gregorypolanski@usglobalhetdel.com. You can ask him by
phone or e-mail any questions regarding your job.

NOTE!

As  soon  as  your  supervisor contacts you, he will become completely
responsible  for  your  further working actions. So please address all
your inquiries, questions and complaints to your supervisor only! When
getting  in  touch  with  you for the first time he should provide you
with  an  access  to  the Tasks Control System of our company. In this
system  you  should find the information on new and current tasks that
were  assigned  to  you as well as all additional information that you
may  need  in  order to handle the packages. We kindly ask you to keep
your  cell  phone  intact  because  your  supervisor  may  contact you
anytime.

Looking forward to your reply!

As you can see after being hired Gegory Polanski was my contact and he is who I was working with and getting the packages and shipping lables from.  His number is 501-896-0450 but no one is answering on the phone just phone answering service.  I have left several messages and I have sent several emails and they are no longer replying.  They sound Jamacan and when I call the phone number on the web site it also goes to voicemail and no one answers.  I would like to know where to go from here and how to get my money and if they are a fraud shut them down.