Persons who are settled in the United Kingdom
3. A person—
(a)who is settled in the United Kingdom on the relevant date by reason of having acquired the right of permanent residence;
(b)who is ordinarily resident in Wales on the relevant date;
(c)who had been ordinarily resident in the United Kingdom throughout the three-year period preceding the relevant date; and
(d)who, in a case where his or her ordinary residence referred to in paragraph (c) was wholly or mainly for the purpose of receiving full-time education, was ordinarily resident in the territory comprising the European Economic Area and Switzerland immediately before the period of ordinary residence referred to in paragraph (c).