Deposits7.
(1)
The MMO may require the holder of a licence to pay a deposit of such amount as it may determine on account of any fee payable under article 4 or 5 which—
(a)
is not subject to a maximum specified in Schedule 1 or 2; or
(b)
is subject to a maximum specified in Schedule 1 of—
(i)
£750; or
(ii)
£15,000.
(2)
The amount of the deposit payable under paragraph (1) in a case within sub-paragraph (a) or (b)(ii) of that paragraph may not exceed £10,000.
(3)
The amount of the deposit must be calculated on the basis of an estimate of the total amount of the fee.