(1)  The Secretary may cause to be retained the whole or part of the reimbursement payable under this Division if a doubt or dispute arises as to the eligibility of a person for the reimbursement.

(2)  A reimbursement may only be withheld under subsection (1) until the first of the following occurs:

(a) the doubt or dispute as to the eligibility of a person for the reimbursement is resolved;

(b) the prescribed period has elapsed;

(c) the Secretary is satisfied that the person is eligible for the reimbursement.