4.—(1) In the case of an application to which article 3(2)(a) or (c) of the 2011 Order applies, where the application is for limited leave to remain in the United Kingdom for work permit employment the fee is—
(a)£850 where such application is made in person at a Public Enquiry Office; or
(b)£550 for an application made by post or courier or via the United Kingdom Border Agency website.
(2) This regulation is subject to regulations 16, 17, 19 and 20.