Courier travel is the exception. Couriers usually are required to sign a contract and sometimes asked to put up a deposit, to be refunded upon completion of the round trip. Book up to three months in advance.
Courier carries documents both ways and signs courier contract.
No credit cards accepted. No deposit required. Book flights up to two months in advance. Courier can receive frequent-flier credit on Qantas. Do not call UTL for last-minute flight availability.