Save as expressly provided in this Act, in any case for which apart from this section the provisions of this Act provide for compensation, a tenant or landlord shall be entitled to compensation in accordance with those provisions and not otherwise, and shall be so entitled notwithstanding any agreement to the contrary.

Where the landlord and tenant of an agricultural holding enter into an agreement in writing for any such variation of the terms of the contract of tenancy as could be made by direction or order under section 14 above, the agreement may provide for the exclusion of compensation in the same manner as under section 76(1) above.

Nothing in the provisions of this Act, apart from this section, shall be construed as disentitling a tenant or landlord to compensation in any case for which the said provisions do not provide for compensation, but (subject to paragraph 8 of Schedule 12 to this Act) a claim for compensation in any such case shall not be enforceable except under an agreement in writing.