“(d) to defray any reasonable expenses incurred by the Minister or, as the case may be, the person nominated or approved of by the Minister as trustee, or provide for any payments to the Minister or trustee on behalf of a customer of a tour operator or travel agent in respect of an overseas travel contract which could not be completed by reason of the inability or failure of the tour operator or travel agent to meet his financial or contractual obligations in relation to such overseas travel contract.”.