If you entered Thailand without any actual visa you got prior to flying into Bangkok, or you paid for Visa On Arrival at the arrival airport in Thailand,
You are going to go to IT Square Laksi Plaza temporary office, just next to Lak Si station on SRT Dark Red Line.
You will go here.
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If you entered on a Tourist or any other type of visa that you applied at the Thai Embassy/consulate before you traveled to Thailand, or you applied for a non-immigrant visa inside Thailand during your current stay in Thailand,
You are going to go to the Chaengwattana Immigration office, Government Complex Building B.
You will go here.
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And you can book online
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