3. Before the determination of an appeal, the appointed person shall ask the parties whether they wish to appear and be heard on the appeal and—
(a)the appeal may be determined without a hearing of the parties if both of them express a wish not to be heard as aforesaid; or
(b)the appointed person shall, if either party expresses a wish to appear and be heard, afford both of them an opportunity of so doing, in which case the provisions of Part 2 of this Schedule shall apply.