one of my relatives works in the customer and he told me that if there is no CHU JING KA, nobody will care where r u going, however, if that damned paper is attached, and u r going to another country, u r in trouble for they have to input ur info. in the interworked computer to verify ur info. on the CHU JING KA. u'd better take a travel to the place specified by ur CHU JING KA if u don't wanna cancel ur household.
good luck!