20Fees for grant of licences, etc
(1)The Secretary of State may by regulations provide for prescribed fees to be payable—
(a)by an applicant for a licence under this Act, or for the variation of a London operator’s licence under section 18, on making the application;
(b)by a person granted a licence or variation, on the grant or variation of the licence and (if the regulations so provide) at such times while the licence is in force as may be prescribed.
(2)Regulations under this section may provide for fees to be payable by instalments, or for fees to be remitted or refunded (in whole or part), in prescribed cases.
(3)The Secretary of State may decline to proceed with—
(a)an application for, or for the variation of, a licence; or
(b)the grant or variation of a licence,
until any prescribed fee (or instalment) due in respect of the application or grant is paid.