Section 11

For the purposes of the recovery of any sums payable by an under-tenant or a lodger to a superior landlord under the undertaking specified in section 10, or under a notice served in accordance with section 14, the under‑tenant or lodger shall be deemed to be the immediate tenant of the superior landlord, and the sums payable shall be deemed to be rent.

Where the under-tenant or lodger has, in pursuance of any such undertaking or notice, paid any sums to the superior landlord, the under‑tenant or lodger may deduct the amount thereof from any rent due or which may become due from him to his immediate landlord, and any person (other than the tenant for whose rent the distress is levied or authorised to be levied) from whose rent a deduction has been made in respect of such a payment may make the like deductions from any rent due or which may become due from him to his immediate landlord.