non-compliance; and (b) comply with the data correction request to the extent possible. (3) Notwithstanding sub-section (2), the data controller shall entirely comply with the data correction request not later than fourteen days after the expiration of the period stipulated in sub-section (1). (4) A data controller is not required to comply with clause (c) of sub-section (1) in any case where the disclosure of personal data to a third party consists of the third party’s inspection of a register— (a) in which the personal data is entered or otherwise recorded; and (b) available for public inspection. (5) Where a data controller is requested to correct personal data under sub-section (1) of section 17 and the personal data is being processed by another data controller that is in a better position to respond to the data correction request— (a) the first-mentioned data controller shall immediately transfer the data correction request to such data controller, and notify the requestor of this fact; and (b) sections 17, 18, 19, and 20 shall apply as if the references therein to a data controller were references to such other data controller. 21. Circumstances of refusal to comply with the data correction request. – (1) A data controller may refuse to comply with a data correction request under section 20 if— (a) the data controller is not supplied with such information as it may reasonably require— (i) to satisfy itself as to the identity of the requestor; or (ii) where the requestor claims to be a relevant person to satisfy himself— a) as to the identity of the data subject with whom the requestor claims to be the relevant person; and b) that the requestor is the relevant person to the data subject; (b) the data controller is not supplied with such information as it may reasonably require ascertaining in what way the personal data to which the data correction request relates is inaccurate, incomplete, misleading, or not up to date; (c) the data controller is not satisfied that the personal data to which the data correction request relates is inaccurate, incomplete, misleading, or not up to date; 23