Where a tenant had filed an acknowledgment of service indicating an intention to take a new lease in response to his landlord’s application to the court to grant a new lease under the amended provisions of s 24(1) of the Landlord and Tenant Act 1954, subsequent notice to the court that the tenant no longer wanted a new tenancy was similar to filing of a notice to discontinue a claim for a new lease justifying an order that the tenant should pay the costs of the entire proceedings to the landlord.