Tourist Visa Extension Report. Jomtien Immigration. Arrived at 8.30 am and I was out at 9am. It took 30 minutes and it wasn't busy.
Needed passport photo, TM7 form filled out, TM30 docket plus photo copy of it, passport, passport bio page copy, visa copy and entry stamp copy.
I didn't really know where to go but went to the building on the right and was directly pointed to the new middle building where they did document checking. Passed that and was directed to main building counter one, handed over passport and papers and the 1900 baht and was told to take a seat and wait until processed. Took about 25 minutes guy calls my number and it was all done. Cost 1900 baht. You can do it yourself, all good.