To reach/speak to a live person at Singapore Airlines Customer Service for 24 hour support (1-888-539-8119) , call their 24/7 Singapore Airlines 800 customer service Phone number hotline (1-888-539-8119) or 1-800-SIA (1 (833) 727-0118). You can also use the live chat feature on their website or reach out to them via email. https://myrbkc.rbkc.gov.uk/forums/support-forum/5218b8f9-9fd9-ef11-a81b-7c1e522069e1