Early Booking Offers - Save Up To 20% on Your Stay Dorsett Tsuen Wan, Hong Kong. Book Early & Save More. 20% discount when booking a minimum 21 days in advance. 15% discount when booking a minimum 10 days in advance. Terms and Conditions: Stay period valid from now till 31 December 2015. Above offer is subject to the room availability. The offer cannot be used in conjunction with any other offers /discounts and /or promotions. Book Now.