10.—(1) The Board may, after giving the parties an opportunity to be heard, reject an appeal in whole or in part at any stage in the appeal proceedings if —
(a)
it considers that the notice of appeal discloses no valid ground of appeal;
(b)
it considers that the appellant is not a party or person referred to in section 71(1) or (1A) of the Act;
(c)
it is satisfied that the appellant has habitually and persistently, and without any reasonable ground —
(i)
instituted vexatious proceedings before the Board; or
(ii)
made vexatious applications in any proceedings before the Board; or
(d)
the appellant fails to comply with any provision of these Regulations, or any direction, practice direction or order of the Board.
(2) Where the Board rejects an appeal, it may, without prejudice to its powers under section 73(8) of the Act, make such consequential order as it considers appropriate.