Where should I go for a tourist visa extension, Chaengwattana or Muang Thong Thani?

@Jamie ******

All immigration offices require the same thing for a 30 day extension of stay based on tourism:

1. The applicant’s passport and a copy of:

a. The data “picture” page.

b. The most recent visa (if applicable).

c. All entry stamps or extension of stay (if applicable) since arrival.

d. The departure card (“TM 6”) that should be stapled in the passport.

2. The extension of stay application form (“TM 7”).

3. A copy of the submitted Notification of Residence of Foreigners form ("TM 30”).

4. 2x passport sized (4cm by 6cm) photos.

5. 1,900 THB processing fee.