[Swooper]

Hey RVF'ers, I'm currently staying in China on a multiple entry tourist visa (L) issued at New York and the duration allowed for each stay is 90 days. Given that I entered the country on January 30th, I figure I have to leave on April 30th and do a reentry into the country to continue staying here. However, I've been doing this for a while and my visa expires on May 16th. How can I renew my Visa? Can I just go the local Exit and Entry Administration of (Nanning) Public Security Bureau or do I have to go to a major city like Guangzhou/Beijing? Or do I actually have to go back to New York for a new visa? It would really mess up a lot of things financially if I had to go back to the U.S. just to get the visa situation fixed. Any help would be greatly appreciated guys!