claimmeans a claim made (irrespective of when it was made) under paragraph 8 of Schedule 7 to the Act for repayment of an amount paid to the Commissioners by way of tax which was not tax due to them;
reimbursement arrangementsmeans any arrangements (whether made before, on or after 30th January 1998) for the purposes of a claim which— (a) are made by a claimant for the purpose of securing that he is not unjustly enriched by the repayment of any amount in pursuance of the claim;
relevant amountmeans that part (which may be the whole) of the amount of a claim which the claimant has reimbursed or intends to reimburse to consumers. 19B Without prejudice to regulation 19H below, for the purposes of paragraph 8(3) of Schedule 7 to the Act (defence by the Commissioners that repayment by them of an amount claimed would unjustly enrich the claimant) reimbursement arrangements made by a claimant shall be disregarded except where they— a include the provisions described in regulation 19C below;