Keep in mind the online eExtension process doesn't mean you get the extension online 😮 Only that you APPLY for it online.
You still have to go to the immigration office with the paperwork to get the extension in your passport.
There is no great advantage to use the eExtension program (plus it's a minimum 500 baht more for the eExtension processing fee)
If you're in Bangkok on a 30 day visa exempt entry you go to IT Square Laksi Plaza for your 30 day extension
This is the location;
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