If you have the actual 90-day non-B visa, then there's nothing you can do but leave Thailand.

If you are on a work extension, then it's possible for your to cancel your extension, and then apply for a new extension based on work. But that is only possible if both schools and potentially both immigration offices are willing to help and coordinate to make it happen. You would need to get documents from your current school stating your last day of work, and then use that documentation to cancel your existing work permit and work extension at the immigration office that issued them. You can sometimes do this a week ahead of time. Then you would need to take the documents from your new school to their immigration office and apply for a new extension based on working for your new job. As I said, the immigration offices and the schools would all need to cooperate to get this done.

The other options is going to get a new non-B outside of Thailand. If you're currently on the 90-day non-B visa then you just leave Thailand and it's fine. If you're on an extension then you MUST cancel that extension before you leave. Then you get the documents from your new job and travel to whichever country you will be using to apply for the non-B visa. Submit the request through the e-visa system. If you go to Laos, it's normally 3-5 working days for a non-immigration visa.

In theory you can return as a tourist and apply to convert to non-B visa inside of Thailand, but most employers cannot or will not support this, because it requires a LOT more paperwork than applying at the embassy. Many companies cannot supply the correct paperwork because of how much it takes, and for those that can, they don't want to do it because it requires a lot of work. Easier to just send you outside of Thailand to get a new visa.

There are 2 email notifications you will receive.

The first one is that they received your submission (automated).

The 2nd one will be that they approved or rejected it (manually processed by someone at your immigration office).

That depends on how many other flights arrive around the same time.

Not for many years now.

@Mauro ********

No, I don't have DTV. But there's a Facebook group that is only for DTV

@Mauro ********

Don't bother trying to get an extension. Immigration doesn't want to issue them and makes it impossible to get it. Instead you just leave every 6 months and return to get a new stamp. Immigration even recommends you to do that.

@Pertti ************

If they don't have the documents for an extension then they just leave the immigration office and nothing happens. Then they leave Thailand and return. Has nothing to do with the question that was asked.

Haven't seen a single report like this

@Robert ********

you need to go to your immigration office and ask them for their handout of requirements for the 1-year extension based on marriage. That will tell you exactly what you need from the bank.

Be more clear about what you are asking about.

Are you asking about the 90-day non-O VISA, or are you asking about an EXTENSION?

If you are asking about the visa, are you asking about it from a Thai embassy outside of Thailand, or are you asking about it from an immigration office inside of Thailand?

The answers for all of these is different.

If you are actually asking about the immigration office, your VERY FIRST step is going to the immigration office and asking for their handout of requirements to either apply for a non-O visa based on marriage, or their handout for a 1-year extension based on marriage. This list will tell you exactly what you need for YOUR immigration office, since each immigration office has their own requirements.

There are some immigration offices that don't even allow you to convert to a non-O visa, so the immigration office is your first stop.