(1) The CMA may extend the preliminary assessment period for the purposes of section 46A if it considers that any of the persons carrying on the enterprises concerned has failed (whether with or without reasonable excuse) to comply with any requirement of a notice under section 109.
(2) [deleted]
(3) An extension under subsection (1) shall come into force when published under section 107.
(3A) An extension under subsection (1) shall continue in force until -
(a) the person concerned provides the information or documents to the satisfaction of the CMA or (as the case may be) appears as a witness in accordance with the requirements of the CMA; or
(b) the CMA publishes its decision to cancel the extension.
(4) [deleted]