Buffet promotions for Citibank cardmembersCitibank cardmembers enjoy the following deals at Plate, Carlton City Hotel Singapore 1-for-1 Weekday Buffet Lunch* 1-for-1 Sea & Grill Buffet Dinner^ Valid from 01/01/2017 to 30/06/2017 Terms and Conditions *Valid from Monday – Friday, 1230pm – 2pm. ^Valid only on Friday and Saturday. Not valid on the eve of and on Public Holidays and other special occasions.