(1) The contribution conditions for unemployment benefit are -
(a) that the claimant has qualifying contributions in respect of not less than 39 contribution weeks in the period between his entry into insurance and the day for which the benefit is claimed,
(b) that the claimant has qualifying contributions or credited contributions in respect of not less than 39 contribution weeks in the last complete contribution year before the beginning of the benefit year which includes the day for which the benefit is claimed, and
(c) that the claimant has prescribed reckonable weekly earnings in excess of a prescribed amount in a prescribed period.
(2) In the case of any claim for unemployment benefit where the period of interruption of employment commenced before the 6th day of April, 1987, subsection (1)(a) shall be construed as if "26" were substituted for "39".
(3) Where a person under 65 years of age has been entitled to payment of unemployment benefit in respect of any day or would but