You are supposed to stay in Vietnam until a decision is made. If you’re not there and therefore can’t prove that you are it’s possible your application will be denied.

That’s why some embassies choose an amount in the currency of the country they’re in so as to avoid exchange rate fluctuations.

You may find that, as with the Bangkok Bank London branch, that it is an investment branch of the main bank and it doesn’t offer normal public banking services.

The London branch of Bangkok Bank does offer a currency exchange service to any Thai bank account but that’s pretty much it for banking services other than investment.

It doesn’t even offer any services to existing Bangkok Bank customers.

@Sarah ************

it’s not overstay. Overstay is when you stay in the country longer than the stamp you received when you arrived allows.

90 day reporting is done whilst in the country having stayed more than 90 consecutive days. You could be on a yearly extension, not have to leave the country at all, be late for your 90 day report (outside the window of opportunity you described) and get the ฿2000 fine.

It’s ฿2000 however late you are.

This is nothing whatsoever to do with overstaying

That’s not overstay. That’s a late 90 day report.

Go to the immigration office that serves the area where your TM30 has you registered and ask them when, and with what documentation, you can apply for your extension.

@James *******

OP is in Bangkok now.

Anonymous participant you officially entered the country in Samui as that’s where you went through immigration.

Anonymous participant You get one stamp from the first immigration officer you see. If your flight is to Bangkok, you get it there. If you transit in Bangkok on one ticket and stay in the transit area in that airport then transfer to Samui you get it there like you did before. After that you’re in the country and travelling domestically is the same as it is everywhere else. You don’t see immigration. No one checks your visa. You’re free to travel around. It’s not North Korea.

What kind of problems do you imagine you will have taking domestic flights? Thailand is a free country. No one examines your visa or asks you why you're travelling inside the country. You don't get entry stamps when you go to different parts of the country. The entry referred to on an entry stamp is entry to the country itself, not different airports inside the country when travelling domestically.