If you are flying on Singapore Airlines, then you will be happy to know that you can contact the Sydney Office at any time. You can do so via the official website, the help section, or by calling the customer service number. These numbers are open round the clock to cater to your needs. If you have an emergency, you can also use the Live chat feature to communicate with Singapore Airlines' customer service representatives. Singapore Airlines Sydney Office Customer Service Department When you have questions about your flight, the Singapore Airlines' customer service department at the Sydney office can be a good resource. They offer 24-hour service. The phone number for this department is 13 10 11. If you have an emergency, you can also call their toll-free contact center at 1-800-358-3378. Contact Details of Singapore Airlines Sydney Office Sydney City Office: Level 9 233 Castlereagh Street Sydney New South Wales 2000 Australia Reservations Email : au_reservations@singaporeair....