11.—(1) A person who is entitled under these Regulations to full or partial remission of a NHS charge or to full or partial payment in respect of NHS travel expenses and who pays such a charge or such travel expenses without exercising his right to remission or payment, is entitled to be repaid that amount which would have been remitted or paid.
(2) A person who wishes to exercise his right to repayment under paragraph (1) must make a claim to the Secretary of State on a form provided for the purpose by him or approved by him.
(3) A claim under paragraph (2) must be made within three months of the date on which the payment of the NHS charge or the NHS travel expenses was made or within such longer period as the Secretary of State may for good cause allow.
(4) Paragraphs (2) to (5) of regulation 7 (claims to entitlement) apply to a claim under this regulation.