Any US / UK / Australian citizens with embassy letter tried for the 30 day extension at Samut Prakan Immigration yet? Seen reports here for Chaengwattana but none for S.P. Would like to know what all requested docs are. Thanks all
TLDR : Answer Summary
The process for obtaining a 30-day visa extension at Samut Prakan Immigration for US, UK, or Australian citizens requires specific documentation. Essential documents include your passport, copies of the passport's front page and the visa/entry stamp page, a copy of your TM6 (arrival card), a filled TM7 application form, two passport photos, a request letter from your home country's embassy, and a 1,900 Thai baht fee. Experiences of others indicate that responses to the embassy letter may vary, and applicants should be prepared for the possibility of requests being denied.