6.—(1) Subject to sub-paragraph (2), the following premiums, namely –
(a)a severe disability premium to which paragraph 13 applies;
(b)an enhanced disability premium to which paragraph 14 applies;
(c)a disabled child premium to which paragraph 15 applies; and
(d)a carer premium to which paragraph 16 applies,
may be applicable in addition to any other premium which may apply under this Schedule.
(2) An enhanced disability premium in respect of a person shall not be applicable in addition to –
(a)a pensioner premium to which paragraph 7 or 8 applies; or
(b)a higher pensioner premium to which paragraph 9 applies.