Someone I know intimately, definitely not me, had one real and two bs ED visas, and one bs volunteer visa in their passport when he or she applied. They got their (not me, definitely not me) DTV in 14 days in Hong Kong last July.
The only thing they asked for was to send them months of bank history, as I, I mean he or she, had only sent them 5 months and 28 days.
I block the dingus laugh reactors, but this guy went out of his way to write a whole paragraph to not be helpful, so I needed to ask what he's doing here.
Ask your employer to write a document stating that you work for them and that you can work remotely from Thailand.
That's what it looks like. Every company makes it differently, but the information has to include your position and that you are able to work remotely.