18. It shall be an offence for a person–
(a)without reasonable excuse, to fail to comply with the provisions of regulation 4, 5(1) or 13;
(b)intentionally to obstruct an authorised person in the exercise of a power conferred by regulation 14;
(c)without reasonable excuse, to faily to comply with a request made under regulation 15; or
(d)knowingly or recklessly to make a statement or furnish any information which is false or misleading in a material particular where the statement is made or the information is furnished–
(i)in purported compliance with any requirement imposed under regulation 14(6),
(ii)for the purpose of obtaining a national administrative document or a duplicate or replacement of same, or
(iii)for the purposes of obtaining for himself or any other person the whole or any part of any Community premium.