6A decision as to the amount of benefit to which a person is entitled, where it appears to the Secretary of State that the amount is determined by—
(a)the rate of benefit provided for by law; or
(b)an alteration of a kind referred to in—
(i)section 159(1)(b) of the Administration Act (income support); or
(ii)section 159A(1)(b) of that Act (jobseeker’s allowance).