Hey probably been asked a million times but I am UK passport holder , came here with 30 day exempt visa at airport, I need another 30 days whilst I wait for my business visa - can I just go to Samui immigration and extend? If so are there any timings I need to know or perhaps documents I need to show? Thanks for any help.
TLDR : Answer Summary
A UK passport holder with a 30-day exempt visa can extend their stay for another 30 days at the Samui immigration office. To do this, you will need to provide your passport, copies of your passport's data page and entry stamp, your TM.6 departure card, a passport-sized photo, and a filled-out TM.7 application form. The extension costs 1900 baht. You should bring a receipt from your accommodation or a business card with the full address. Make sure the TM.30 form was filed within 24 hours of arrival to avoid fines.