I'm currently in Thailand on an education visa. My second 3 month extension will expire on the 29th of November. At this time I will have completed 9 months on the education visa. I don't want to do the final 3 month extension. On the 29th of November, I want to leave the country, and go to Lao, and apply for a DTV. My question: Do I need to do a cancel on the Education visa, or can I just wait until the 2nd extension expires, and go apply for the DTV.