Hello, for payment for stamping fee for visa on arrival land at Vietnam airport, should I use only USD in cash? no other way to pay?(like credit card or other currency). Luke.
Be kindly advised that stamping fee is only accepted in Cash. You can pay in another currencies but in US dollar is highly recommended to avoid any unbalanced exchange rate.
For more answers about Vietnam visa and related information, please visit http://vietnam-visa.co.uk/faqs/.