@Peter ***************
DTV is classified as a "special" tourist visa. And no office in Thailand HAS to do anything. They are little kingdoms unto themselves and get to decide their own rules and policies. Many DLT offices do not accept applications from those on tourist visas, despite there being nothing in law that says they are not eligible for a drivers license.
Just like each immigration office makes its own rules and requirements despite there being published visa rules.
Just like each embassy makes its own rules and requirements, despite the MFA having published rules and guidelines.
Just like each individual branch of a bank makes their own policies on who can get a bank account and who cannot.
In Thailand the local level gets huge amounts of latitude.