Hello all, quick question: I have a multiple entry tourist visa and I am located in Bangkok. Which immigration office do I go to to apply for a 30-day extension? USA passport. Thanks.
TLDR : Answer Summary
To apply for a 30-day extension on your multiple entry tourist visa, you should go to the Chaengwattana Immigration Office located in Government Complex Building B in Bangkok. It is advisable to book an appointment online to save time, though it is not mandatory. Make sure to check the required documents for the visa extension.