Chatrium Residence Sathon Bangkok! Easter Special Room Only @ Chatrium POS. Complimentary WiFi. Welcome drink upon arrival. THB 500 per room per stay, only eligible to be used on chargeable facilities, i.e., F&B, Business Centre, Laundry, etc. Early check in and late check out subject to the room availability upon check in and check out. Free daily shuttle van service. T&C: Reservations must be cancelled 1 day prior to arrival to avoid a penalty of nights room and tax or for no show 1 night charge applies. Booking period 17 February - 30 April 2015. Period of stay 15 March 2015 - 30 April 2015. Book Now.