12.—(1) Where a redemption notice in respect of a ground rent has been withdrawn under paragraph (1) of Article 11 or has ceased to have effect under paragraph (2) of that Article, no subsequent redemption notice in respect of that ground rent may be served by the same rent-payer within the period of 6 months from the date of withdrawal or cesser, without the consent of the Registrar.
(2) The Registrar’s consent under paragraph (1) may be given subject to conditions, including a condition that the rent-payer defrays such of the costs incurred by the rent-owner, or any superior owner or mortgagee, in consequence of the earlier redemption notice, as the Registrar directs.
(3) Notwithstanding Article 2(3), for the purposes of this Article a successor in title of a rent-payer is not the same rent-payer.