Private Loan in Collection

[jordanmedical]

I have several Federal Loans, all in good standing and one private loan, that was sold to collection.

One Remark says a claim was filed with the government last year then a few months later it is in collection.

What started off as a 19K loan is now 30K.

Any advice on how to proceed with this account is greatly appreciated.

The late payment history and the collection are both hurting my credit.