Some offices require the money to be in a Thai bank. Knowing that DTV holders aren't allowed one and used their home country bank for the application. Educate yourself about the DTV. You may be an expert one day.
Yes that's true. But IOs still can't verify any documents you show them issued outside Thailand. It's the main reason they won't do in country extensions.
The ask:thailand community, consisting of multiple Q/A groups with over 100,000 members, powers this platform. It is not an official government resource. Our members actively contribute to this resource, and while we strive for accuracy, we cannot guarantee its complete reliability. Assistance to travelers is provided as a community service.