(7) For the purpose of any claim to receive unemployment benefit under the legislation of the United Kingdom, a person who has at any time before 6 April 1975 paid at least twenty-six weekly contributions as an employed person under the legislation of the United Kingdom, or in any year since 6 April 1975 has paid contributions as an employed earner on earnings of at least twenty-five times that year’s weekly lower earnings limit, shall be treated, for the purpose of any such claim, as if:
(a)he had paid, under that legislation, an employed earner’s contribution on earnings equivalent to two-thirds of that year’s upper earnings limit, for each week during which he was gainfully occupied in employment in Canada;
(b)he had had a contribution credited to him under that legislation as an employed person for any week during which he was resident in Canada and was unemployed and available for work or was incapable of work, if that week was part of a period during which he was ordinarily gainfully occupied in employment in Canada.
(8) Nothing in paragraph (7) shall diminish any right which a person has, apart from these arrangements, to receive unemployment benefit under the legislation of the United Kingdom.