“If any of the relevant costs taken into account in determining the amount of any service charge were incurred more than 18 months before a demand for payment of the service charge is served on the tenant, then (subject to sub-section (2)), the tenant shall not be liable to pay so much of the service charge as reflects the costs so incurred.”
“A reasonable sum to remunerate the Lessor for its administrative and management expenses in respect of the Estate (including a profit element) such sum if challenged by any lessee to be referred for determination by an independent Chartered Accountant … acting as an expert.”
“After the end of each Service Charge Year the Lessor shall determine the Service Charge Adjustment calculated as set out in the following paragraph: 4.1 the Service Charge Adjustment shall be the amount (if any) by which the respective estimates under paragraphs 3.1 of this Schedule shall have exceeded or fallen short of the actual expenditure in the Service Charge Year. 4.2 the Lessee shall be allowed or shall on demand pay as the case may be the proportion appropriate to the Property the Proportion of the “Service Charge Adjustment.”
“Subject to the provisions of paragraph 3.3 of this Schedule a certificate signed by the Lessor and purporting to show the amount of the Service Charge or the amount of the Service Charge Adjustment for any Service Charge Year shall be conclusive of such amount save as regards manifest errors.”
“20. We are satisfied that the tenants are entitled to the benefit of a limitation period of 18 months prior to the demand of them for payment of the arrears on or about30 June 2010 . We are satisfied that, as a matter law, costs are “incurred” within the meaning of section 20B of the Act when the landlord becomes liable to pay them, which is normally, and is in this case, when the bill in question is first presented for payment to the landlord for the time being. It seems to us that nothing can deprive the tenants of the benefit of that limitation period (in the absence of proper notification under section 20B(2)) which is there for their protection and rightly so, and that no decision by a freeholder to sell its interest can deprive them of that protection. As Etherton J as he then was, said in Gilje v Charlegrove Securities Limited[2004] 1 All ER91 at paragraph 27, “the policy behind section 20B of the Act is that the tenants should not be faced with a bill for expenditure of which he or she was not sufficiently warned to set aside provision.”