ATG Credit, LLC Student Loan Complaint

ATG Credit, LLC Student loan department,

Non-federal student loan Dealing with my lender or servicer Don't agree with fees charged New York

I am - and all my school loans were paid off by the - discharge in - 2015. A few weeks ago I started to receive calls from a bill collection company names ATG LLC asking me to pay my bills. I told the - who is the debt holder for - - that i have confirmation that the debt was paid. - and his company ATG LLC continues to harass me with letter and calls. - and ATG LLC went as far as adding the debt back to my credit. Its not my fault that - - got paid for my student loans and did n't communicate with ATG LLC. I have the proof that all debt was paid and I should n't be harassed with letter and phone calls everyday. Then to see the debt on my credit report which took a big hit over a debt that was paid.