My TCT waiver/exemption letter dated January 25, 2010 is for 2 years, but in 2011 Mukdahan immigration office only gave me my new visa until January 25, 2012. I had to get a new TCT letter (another 2 years) to allow me to finish the current academic year in early March. I would recommend to the TCT that their letters should state a more explicit time frame, like including an ending date for example. It would be better if their letter specifically said something like: "for X academic year(s) ending on March 31, 20XX." which is when I think many contracts end. Mukdahan immigration is only doing their job to the letter of the TCT waiver, but students could lose a teacher before the academic year ends if the TCT decides to reject the school's new application for its teacher. Also, I now have to pay again for the privilege of completing this term with my students. My school sadly doesn't pay for my visa and work permit like many other schools.