course of higher educationmeans a course of any description mentioned in Schedule 6 to the Education Reform Act 1988, or a course which would be such a course if—
relevant coursemeans a course of education— (a) which subsists for more than 3 calendar months, (b) which is not a course of higher education, (c) with respect to which tuition is principally received otherwise than through correspondence, and (d) with respect to which the relevant activities are (insofar as they are normally carried out under the course at particular times) normally so carried out principally between 8.00 am and 5.30 pm;