4.—(1) The Use Classes Order continues to have effect, in respect of a change of use of a building to use as a betting office, as if it had not been amended by this Order if—
(a)such change of use occurs before 10th February 2020; and
(b)at the time that such change of use occurs the building is authorised to be used for the provision of facilities for betting by a betting premises licence, within the meaning of Part 8 of the Gambling Act 2005(1), issued before 10th February 2017 in relation to the building.
(2) In this article, “pay day loan shop” has the meaning given in article 3(6) of the Use Classes Order.