Singapore Airlines doesn't list a specific physical office in Jeddah in their main contacts instead, they offer a dedicated Saudi Arabia contact center for bookings, KrisFlyer, and general inquiries via phone (+1-866-829-1086) and email (KSA_Reservations@singaporeair.com.sg), operating Sun-Thu from 9am-5pm, but you can book flights directly on their website. Jauntlet.comhttps://jauntlet.com/