Advance Purchase, Up to 20% Off Oakwood Premier OUE Singapore. Enjoy the following Advance Purchase rate when you book early with us: 20% off Best Flexible Rates for bookings made at least 21 days in advance. 15% off Best Flexible Rates for bookings made at least 14 days in advance. Rate includes complimentary daily breakfast. Terms and Conditions: Offer is not applicable on existing contracts. Not valid in conjunction with other promotional offers. All rates are subject to applicable taxes and service charge. Rates are per apartment, per night. Rates are subject to availability and blackout dates and terms and conditions such as cancellation policies apply. Rates may be subject to change without prior notice. Book Now.