I received my discharge, but the trustee is still asking me for things.

People often confuse discharge and case closure.   The discharge is the document that eliminates your personal responsibility for your debts.  It does not discharge your trustee from your case.  Your trustee may hold your case open, if there are assets, or there might be assets.  If there are no assets, or if the trustee has collected all assets from you and distributed them to creditors, then the trustee will file a final report.  Once the final report is done the trustee will ask that the case be closed.  In most cases, once your case is closed, the bankruptcy process is over for you.