This concerns a private student loan that I obtained during my first year of XXXX school in XX/XX/XXXX at XXXX University XXXX XXXX XXXX, XXXX, Oregon. As a condition of obtaining the loan, I was required to obtain a guarantor. My now ex-wife 's grandmother agreed to be the guarantor. The loan was for about {$4000.00} to cover tuition and living expenses. The loan was issued by XXXX XXXX and has been continuously serviced by XXXX XXXX, now Navient. 

Since the loan has been in repayment, my guarantor has been making {$75.00} payments every month directly to XXXX XXXX, which is significantly higher than the minimum monthly payment. I have reimbursed her for each of those payments. She has done this to ensure that, despite any fluctuation in my ability to pay, the loan will be paid and will not adversely effect her credit. A few years ago, I calculated that this accelerated repayment schedule would pay off the loan in full in about 18 months. That was now at least two years ago. 

In addition to the $ 75 monthly payments, I have also been paying the minimum payment as an auto-draft from my checking account. This minimum payment is around {$6.00}. 

After remembering my calculations last month, I checked online to see why this loan was not yet paid off, and I discovered that in XXXX XXXX ( around the time that XXXX XXXX changed to Navient ), the {$75.00} payments were no longer being credited to this loan, even though my guarantor was mailing checks in every month, using payment coupons provided by XXXX XXXX to the address provided on the coupons. There were about {$1300.00} in payments that were missing, which was more than enough to cover the outstanding balance. 

I called Navient on XXXX XXXX, XXXX. The agent was able to tell that the {$75.00} payments from my guarantor were being made, but that the payments were being applied to my Federal Spousal Consolidation Loan. My guarantor has no connection with that loan. I instructed them to correctly apply the payments, and they assured me that it would be done within 7-10 business days. 

It has now been nearly a month since that conversation, and my loan still shows an outstanding balance of {$300.00}. 6 of the {$75.00} payments that were made between XXXX XXXX and XXXX XXXX are still not showing as having been made on this loan. This amounts to {$450.00} in mis-applied payments, which is more than enough to pay off this loan. In the meantime, I have continued to make principal and interest payments ( of about {$6.00} ), when the loan should have been paid in full months ago. 

I have emailed Navient about the issue, but they have not yet gotten back to me. The last time I called them, it took well over an hour.