I co-signed for a private education student loan for my nephew in XX/XX/XXXX in the amount of {$9900.00}. I finally was able t re-pay the loan back XXXX ( plus interest ) totaling {$11000.00}. Recently, Navient Solutions XXXX XXXX XXXX XXXX sent me a bill for {$5500.00}. I immediately called Navient customer service to explain and was asked to submit proof to the claim department ( which I did XXXX. Several weeks later I received another invoice, I called again and asked to speak with a supervisor. But without resolve and being placed on hold for long periods of time as well as being transferred from customer service to claims to other supervisors was asked again by Navient to provide a payment history. I asked if they would do the same so I can compare it to what I 've sent over the years but have only been told they 're experiencing technical problems and my payment records are n't available. I 've faxed and mailed check dates, numbers and amounts but still no resolution. Under the Fair Credit Reporting Act, Navient is obligated to provide a detailed summary of all payments received by date and amount. As of today, they have not done so. What is my recourse? How can I get the protection I need to resolve this problem? I am a consumer and stuck in the vortex of a large federal organization who 's common practice is to provide unfair customer service to students, seniors and veterans. The customers services representative and supervisors are deceptive and change their names. I know I spoke to the same reps several times but they swear its not so ... What are my next steps? The more I call Navient, the more excuses I receive ... .If this is happening to me I know others experiencing the same frustrations. Navient is located at XXXX XXXX XXXX, XXXX PA XXXX. XXXX.