Book Direct & Receive S$45 Meritus Hotels, Singapore. Celebrate 45 years of Asian hospitality as Mandarin Orchard Singapore celebrates our 45th anniversary in 2016. To reward our guests, receive S$45 food & beverage voucher when you book rooms at Mandarin Orchard Hotels with these packages: Best Flexible Rates. Advance Purchase, 10% off. Stay 3 nights, 15% off. Terms & Conditions: Offer valid through out the year. Subject to availability.