hi,i want to travel to china on bussines,although as a tourist because i do not have any company to invite me. i was in south africa to buy some things but the items were very costly,so i changed my mind to go to china for the same purpose.i have a registered bussines here in nigeria and i think a have the required documents,yet i have been told that the embassy do grant visas to applicants even after providing them with their requirement ,that they always find a way to turn one town. what do i do?