You can’t work for a Thai company or pursue Thai customers on a DTV, but you can change to a Non-B if you find an employer to sponsor you. Your DTV is gone at that point though.
Why waste the money on a DTV if you are planning to work?
Ah, I applied for the DTV online through the LA consulate while I was in Singapore and was approved. You just need to show proof of residence in the US, not actually physically be there.
It’s not “for no reason”. They rejected you because you aren’t complying with their requirements. Did you ask what the requirements are?
Beginning early this year the Thai gov started cracking down hard on money laundering due to international pressure. This in turn has caused the banks to significantly tighten their procedures for accepting and onboarding new customers. Good luck.
FWIW you don’t really need a DTV for your child. There is no overstay penalty for children. They do get an overstay stamp in their passport but it’s not held against them as long as they are traveling with a parent/guardian who has a visa or eligible for the waiver.
I have been in-and-out several times on my DTV with no real issues. Only problem I’ve had is IOs who aren’t yet familiar with handling DTVs and have to ask someone for help.
I got a DTV specifically because I had been warned by both an IO and the Thai embassy in Singapore that I had too many tourist visas and needed to get a long-term visa. I have re-entered Thailand multiple times since getting the DTV with minimal hassle.
visa status of the kids is functionally immaterial if they are going to an international school (or homeschooled) and their parent(s) have their own (non-guardian) visa.