hi i am holding thai passort and my husband holding new zealand. we are in thailand at the moment. we will go to north of laos frist and then china. we will go to south of china by bus but we will apply a china visa in bangkok. i would like to know. what doccument do i need to perpare. do ineed a bank statment ? i dont have bank statment but i have traveler checq. do i need health report.