@Greg *******
the TM30 is required for any extension or 90 day report, so yes no TM30 you will be turned away from ANY office. That is not what they asked. You do not have to file at the immigration office in the same city you are living. For example, my TM30 shows I’m living in Pattaya but I can go to any immigration office in Thailand. Some people come from Bangkok to file their extension or 90-day report in Pattaya because the immigration office here isn’t as busy, it’s faster.