(1) The CMA and the persons carrying on the enterprises which have or may have ceased to be distinct enterprises may agree to extend by no more than 20 working days the four month period mentioned in section 24(1)(a) or (2)(b).

(2) The CMA may by notice to the persons carrying on the enterprises which have or may have ceased to be distinct enterprises extend the four month period mentioned in section 24(1)(a) or (2)(b) if it considers that any of those persons has failed (with or without a reasonable excuse) to comply with any requirement of a notice under section 109.

(3) An extension under subsection (2) shall come into force when notice of the extension is given and end -

(a) when 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) if earlier, the CMA cancels the extension.