(2) pay to a person, in accordance with the agreement,(a) a sum that is payable to the person according to the band text, or
(b) a sum as a recoverable advance, if no sum is held on behalf of the Native community in the Consolidated Revenue Fund or if the sum to be paid under subparagraph a is greater than the sums so held, provided that their reimbursement by the Native community is provided for in the agreement.