Hi, thanks for your question. You should hire a lawyer for specific legal advice. No attorney client relationship is created here.
I have to add some information. Educational debts are not always dischargeable. the bigger issue here is that you did not get a discharge, your case was dismissed for lack of payments. Therefore, any amount that was not paid, will be due, including any interest that may have accrued. (chapter 13
's often only pay 10cents on the dollar)
So, in theory 90% of the loan would still be due, with interest.
The laws have changed now too, making it even harder to discharge student loans in bankruptcy.
So, unless you paid off the entire pre-filing balance owed to the loan company, they are fine in collecting on the unpaid balance.
Let me know if you have any questions.