Valid for UOB Mastercard Cardmembers till 30 June 2023 for bookings made via https://www.discoverasr.com/en/member/partner/mc. Mastercard cardmembers must register to be an Ascott Star Rewards member to enjoy the Promotion. Bookings made under 'One Night Free' Programme are modifiable and cancellable within the Promotion Period. Bookings must be guaranteed with an eligible Mastercard at point of booking. Rates and rate inclusions are subject to change without further notice and are non-negotiable, non-transferable and non-commissionable. Reservation must be made in advance, prior to arrival and is subject to availability. Blackout dates may apply. The Promotion may be applicable to specific room types and subject to the serviced residence's minimum stay requirement (if any). Mastercard cardmembers must present an eligible Mastercard upon check-in and must make payment with their eligible Mastercard to enjoy the promotion rates. Not valid for existing reservations and cannot be used in conjunction with any other promotions, partner offers, third-party websites, corporate and promotional rates. Ascott will not be able to exchange the discount for cash, other privileges or value-adds, nor will be able to transfer the discount to another guest. Mastercard and Ascott reserve the right to vary the Promotion and the terms and conditions applicable to the same or to withdraw or discontinue the Promotion without prior notice or liability to any party. Ascott's guarantee and cancellation policy applies. Ascott Star Rewards programme terms and conditions apply.