totally agreed with previous comment : some places are fine with just the final value being 500k. But that’s just random chance and interpretation. Feel free to try
Dead simple ; you need to show 6 months of bank statements showing that you have the 500k฿ in current or saving accounts, not in crypto and such, if you can’t show this it was not even worth applying, you don’t qualify. So you can sell stocks and crypto worth 500k฿ and apply again in 6 months
My DTV application took 4 weeks. What do you think ? Everyone rushed to apply for DTV all around Thailand, it was obvious that at some point there would be some delay isn’t it ?