Yeah it's a stupidly designed form

Is your bank account a personal bank account? Have you provided an employment letter/contract for yourself? Have you created an employment certificate saying that you are currently employed and also that you are able to work remotely in Thailand and that you will have no interaction with Thai businesses or customers.

Finally, you haven't said anything other than you are a business owner. Being a business owner is not a qualifying activity under the DTV schemes.

be sure they have a recent success rate and at which consulates

You'll definitely need to show proof of location for Vietnam such as your visa and your current location Hotel, you can do something like show a receipt from a local business or ATM with today's date in a selfie. Shouldn't need to provide any accommodation proof in Thailand, just your initial hotel booking etc.

Reapply? Was your application rejected before? Or do you mean you are trying to get an extension inside the country?

Idiom: under the radar

Did you get a receipt, probably not, you got taken, typically around the country the fee to expedite is 300-500 baht

@Brett ******

if your next extension is due in May 2026 you need the 800k in a Thai bank account in your name only 2 months before you apply. As well as follow the rules of keeping it at 800k for 3 months after your current extension was inked in and never letting the balance go below 400k.

@Brett ******

it's a likely Non O, since OA is not available to be purchased in Thailand. it was a 90 day visa and then a 1 year extension plus a multiple re-entry permit? Bought in February of this year?

You're going to have to exit and re-enter after a single in country extension anyways, so you might as well just start bouncing now. It'll likely take you days to gather the requirements and you'll be put under consideration and need to return to get your stamp. Or you can bounce all in a few hours.