I'm issuing 3 LONE4s from SYD but don't have a local address in AUS with which to send the tickets to; she said she could send them to the airport but that they could get lost. AMEX will hold client mail for 30 days but my trip is about 60 days out.

What are my options? I'm staying at the Marriott Sydney Harbor - do you think they would accept mail ahead of time for a guest?