If the tenant has failed to pay the rent or any other payment due from him as a tenant for a period of four weeks after it has been lawfully demanded from him, the landlord is not bound to comply with subsection (1) while the whole or part of that payment remains outstanding.
Subsection (2B) applies if an application is pending before any court—
The landlord is not bound to comply with subsection (1) until such time (if any) as the application is determined without—
or the application is withdrawn.
For the purposes of subsection (2A) and (2B)—
Subsection (1) has effect subject to section 121A(5) (disapplication of subsection (1) where suspension order is made).
Subsection (1) also has effect subject to—
The duty imposed on the landlord by subsection (1) is enforceable by injunction.