Throughout the British administration of North Borneo, the British government continued to make the annual "cession money" payment to the Sultan and its heir and these payments were expressly shown in the receipts as "cession money". In a 1961 conference in London, during which a Philippine and British panel met to discuss on the Philippine claim of North Borneo, the British panel informed the Congressman Salonga that the wording of the receipts has not been challenged by the Sultan or its heir.