So many stories of how to acquire a visa extension thru-out VN and how local jurisdictions handle them. I can see how an extension may be gotten in Nha Trang at least if you live in Nha Trang. How about if you live in Cam Ranh 35 mi south of Nha Trang? Will a travel agency in Nha Trang be able to acquire a visa extension for a person living outside of the city but living in Khanh Hoa Province? What is the cost of a 90 day extension there.