How much need to pay for getting residence cert from Immigration?
Does it and walk in?
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Can Language school visa change to DTV? any experiences?
TLDR : Answer Summary
Obtaining a residence certificate from Immigration in Thailand typically costs between 0 to 500 Baht, depending on the province or immigration office. It's a walk-in process. Regarding changing a language school visa to a DTV (Digital Nomad Visa), this is not permitted as you cannot switch any visa or extension to a DTV; you must apply for it at a Thai consulate in another country.
DTV VISA RESOURCES / SERVICES