10. Except in a case to which paragraph 6, 7 or 9 applies, where a claimant satisfies the Secretary of State that—
(a)he would have made a claim or an application for a review on an earlier date than he actually did but for an act or omission of the Secretary of State or any officer of his carrying out functions in connection with war pensions, defence or foreign and commonwealth affairs, which wrongly caused him to delay the claim or application and that act or omission was the dominant cause of the delay; and
(b)that act or omission continued to be the dominant cause of the delay up to the moment the claim or application was made
any reference in this Schedule to the date of a claim or date of application for review shall be treated as a reference to the earlier date referred to in this paragraph.