At any time before a new lease is entered into in pursuance of the tenant's notice, the tenant may withdraw that notice by the giving of a notice to that effect under this section ("a notice of withdrawal").
A notice of withdrawal must be given—
to the landlord for the purposes of this Chapter;
to every other landlord (as defined by section 40(4)); and
to any third party to the tenant's lease.
Where a notice of withdrawal is given by the tenant to any person in accordance with subsection (2), the tenant's liability under section 60 for costs incurred by that person shall be a liability for costs incurred by him down to the time when the notice is given to him.