Due process: The court discusses what constitutes “proper notice” of the appointment of the arbitrators or of the arbitration proceedings.
"Proper notice"
511
Due process: The court discusses various irregularities affecting due process, including letters not sent, names of arbitrators or experts not communicated, language of proceedings and communications, etc.
"Otherwise unable to present his case"
513
Ground d: Irregularity in the composition of the arbitral tribunal or arbitral procedure