For Tourist Visa Extension ( 30 days ) , Where to go ?
1- Chang Main immigration office
Or
2- IT square 3rd floor in Lake SI
Thank you โบ๏ธ
TLDR : Answer Summary
For extending a 30-day Tourist Visa in Thailand, you have two options depending on how you entered the country. If you entered on a Tourist Visa purchased in advance, you should go to the Chaengwattana Immigration office. If you did not purchase a visa before traveling, you should visit the IT Square Laksi Plaza temporary office.