Information on reopening a case is provided on the U. S. Courts website at the following link under the heading "May the debtor pay a discharged debt after the bankruptcy case has been concluded?"

http://www.uscourts.gov/services-forms/bankruptcy/bankruptcy-basics/discharge-bankruptcy-bankruptcy-basics

In depth information on reopening fees is available on the U. S. Courts website at the following link:

http://www.uscourts.gov/services-forms/fees/bankruptcy-court-miscellaneous-fee-schedule