Just thought I'd send some love to the Udon Thani immigration office, since it's more than deserved.
By FAR the best experience I've ever had getting an extension. And that on what was probably the busiest day of the year, 18th April, first day open after songkran.
I went in like a good school boy with my passport copies and pictures etc. Turns out didn't need anything but my passport and current address in Udon. The moment you walk in you are taken care of, no filling out forms or going elsewhere to make copies, no nothing! My hotel didn't even do the tm30. They literally do everything for you. All I did was walk in, hand over my passport and address, wait 30 min, pay 2000 baht and I was out the door. Compared to some other cities like Phuket where they send me back to my hotel to beg them to do the tm30, missing my flight and so on, this was a walk in the park. I'm seriously thinking next time I'm in BKK and need an extension I'll just hop on a plane and get it done in Udon.
Thanks to everyone at the Udon immigration office!