Can a Non-O Volunteer Visa Holder Change to a Non-B Visa Without Leaving Thailand?

@Tod ********

So is it mean that you prefer not to give the passport and money to the agent and get the so called volunteer visa right?

@Eshing *******

and I asked you questions so I could give you GOOD accurate answers. If you don't wanna answer that means you most likely DID use the "under the table", "back door" hand your passport to an agent to get the volunteer visa.

AND

If that's the case NO you can't change it inside the country..