Offers and Promotions Singtel 11.11 Online Flash Sale: 25% Off SIM Only Plans, 50% Off 10Gbps Lite Broadband, Until 15 Nov 2026 Singtel's 11.11 Online Flash Sale lists 25% off monthly mobile plans, 25% off SIM Only plans from $30/mth with port-in, and 50% off its new 10Gbps Lite broadband plan, all until 15 November. T&Cs apply. Nov 6, 2026