For the record Kanchanaburi also requires a tm30 each time I return. As someone above posted, I have a supply of pre- signed tm30 and as my imm office is on the way home from the airports I drop in with the form.
for my non imm and extension I had to draw a map to my house from the office (in Kanchanaburi not Chiang Mai). They said it had to be good enough to find the house. TBH i didn't really think they would come 3 hours to the small, remote village, but they did. By typically I meant sod's law in that they came when I was not where I said i'd be. Out of interest I moved here after 5 years in Cambodia which at the time was so easy to 'stay' year on year but it is changing as I type to a process similar to Thailand. There were certainly more hoops here and I feel the favourite game is to think of more hoops each time, but like everything if you want to stay here you have no choice but to comply.
Hi Micha are you saying you can go from arrivals to departures at KL and stay airside, missing out immigration altogether? Presumably you have already checked in for your return flight before you leave Thailand and printed your boarding pass?