(1) Subject to subsection (2) and section 159, the weekly rate of State pension (non-contributory) payable in accordance with section 156 shall be increased -
(a) by the amount calculated in accordance with Part 2 of Schedule 4 where the beneficiary is living with, or is wholly or mainly maintaining, his or her spouse, civil partner or cohabitant, subject to the restriction that the beneficiary shall not be entitled for the same period to an increase of pension under this paragraph in respect of more than one person,
(b) by the amount set out in column (6) of Part 1 of Schedule 4 where the beneficiary is living alone,
(c) by the amount set out in column (7) of Part 1 of Schedule 4 where the beneficiary has attained the age of 80 years, and
(d) by the amount set out in column (8) of Part 1 of Schedule 4 where the beneficiary is ordinarily resident on an island.
(2) An increase under subsection (1) (a) shall not be payable where the spouse, civil partner or cohabitant is -
(a) in rece
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