Appeal procedure requires timely filing and a prescribed deposit as condition for appellate review proceedings. An aggrieved person may appeal National Commission orders to the Supreme Court within thirty days, subject to the court's discretion to permit belated appeals for sufficient cause. Where the National Commission's order requires payment, the Supreme Court will not entertain an appeal unless the appellant has deposited, in the prescribed manner, fifty per cent of the ordered amount or a specified monetary threshold, whichever is less.