14.—(1) A person liable for the payment of development charge under an interim order shall pay the development charge specified in the order —
(a)
within 30 days of the service on him of the interim order of the competent authority, or such extension as the competent authority may allow; or
(b)
where the person has made an appeal against the interim order under section 39(7) of the Act, within 30 days of the decision of the Minister on the appeal, or such extension as the competent authority may allow,
whichever is applicable.
(2) If the person liable for the payment of a development charge fails to pay the development charge specified in the interim order within the relevant time limited by paragraph (1), the competent authority shall refuse the application by the person for written permission.