Can I get a refund if I inadvertently pay a fee?

Answer: 

The Judicial Conference prohibits refunds of the fees due upon filing. The Conference prohibits the clerk from refunding these fees even if the party filed the case in error, and even if the court dismisses the case or proceeding.   See LBR 1006-1(b).

Exception:  the clerk must refund any fee collected without authority. For example, the clerk has no authority to collect a fee to reopen a case unless the case is closed. Consequently, the clerk must refund a fee to reopen if the parties discover later that the case was open.