I was at the Chiang Mai Airport Immigration office on an unrelated matter and discussed with them my Visa Status. I am a US Citizen and originally had a B Visa that I acquired overseas (sticker in passport), and then I went on Amnesty in May. I already bought an airline ticket and assumed I would be leaving on 26-Sept. I asked them if I had any options other than leaving on or before Sept. 26. They informed me that the US Embassy was now issuing letters to assist in requesting a 30 day extension. I went on the US embassy website, submitted my information, and am now waiting on my letter. Has anyone tried to get the thirty day extension yet, and have they been successful?