41.—(1) The registrar shall extend any time or period in these Rules where he is satisfied that the failure to do something under these Rules was wholly or mainly attributed to a delay in, or failure of, a communication service.
(2) Any extension under paragraph (1) shall be—
(a)made after giving the parties such notice; and
(b)subject to such conditions,
as the registrar may direct.
(3) In this rule “communication service” means a service by which documents may be sent and delivered and includes post, electronic communications and courier.