Chiang Mai extension Update:
Had my TM 7 filled in, photocopy if passport, departure card, stamp and SETV visa. One photo, passports.
No departure flight needed. ☺️☺️
We arrived at 8:30 and was out by 8:50.
If you get a taxi there, I would advise to get a taxi to the airport plaza and then walking 5 min to the immigration building. Cheaper.
No TM30 needed but our Airbnb host did it online so not sure if that affected anything. They didn’t ask for it.
Really easy, thanks for the help.
TLDR : Answer Summary
The user shares a successful experience extending their visa in Chiang Mai, reporting a quick process where they submitted the TM7 form, passport photocopies, and other necessary documentation without needing a departure flight. They found it efficient, completing the process in under 20 minutes, and noted that their Airbnb host handled the TM30 online without issue.