Any variation effected by an order under section 38 shall be binding not only on the parties to the lease for the time being but also on other persons (including any predecessors in title of those parties), whether or not they were parties to the proceedings in which the order was made or were served with a notice by virtue of section 35(5).
Without prejudice to the generality of subsection (1), any variation effected by any such order shall be binding on any surety who has guaranteed the performance of any obligation varied by the order; and the surety shall accordingly be taken to have guaranteed the performance of that obligation as so varied.
Where any such order has been made and a person was, by virtue of section 35(5), required to be served with a notice relating to the proceedings in which it was made, but he was not so served, he may—
A tribunal may, on an application under subsection (3)(b) with respect to any variation of a lease—
as it thinks fit.
Where a variation is cancelled or modified under paragraph (a) of subsection (4)—
and, in a case where a variation is so modified, subsections (1) and (2) above shall, as from the date when the modification takes effect, apply to the variation as modified.