Student loan — ACS Education Services (AZ)

Trouble with how payments are handled. Good morning my name is XXXX ( XXXX ) about XXXX I attended XXXX and took out loans to pay for my school. Fast forward to now I am currently being garnish by XXXX ( XXXX ) for the past 3years to pay my school loan. XXXXACS ( XXXX ) just sent a judgment to garnish my wages as well US department of Education is off-setting my taxes and they as well as these collection agency XXXX, XXXX, XXXX, U S DEPT OF ED/GSL/ATL, ACS/XXXX are on my credit report with XXXX All are claiming ownership of my loan with XXXX for close to {$13000.00}. How can XXXX collection agency collect on the same loan triple dipping ...?