After several try, on 23rd November 2011 I got success to hear Argentina National Radio or Radiodifusión Argentina al Exterior (RAE) on 15345 kHz in German Language and soon after sent an email reception report which was verified by an eQSL on 17th December 2011 by Rayen Braun, the German Editor. This is what Rayen wrote:
Dear Mr. Purkayastha!
Enclosed I send you our e-QSL and hope you enjoy it!
Best regards from Argentina
And Here is the recording of that German transmission I heard: https://www.box.com/s/deca4a48b0ee03389540