Proof of service of all other pleadings and papers required or permitted to be served, other than those for which a method of proof is prescribed in the Federal Rules of Civil Procedure, shall be by written acknowledgment of service, by affidavit of the person making service or by certification of counsel. A party who has been prejudiced by failure to receive due notice may apply to the court for appropriate relief. Proof of service of discovery material shall not be filed unless required in accordance with Local Rule 5.4.