I guess you just have to worry about the 20k again then. I don't know if knowing the law helps here because they seem to be very arbitrary. I guess the only advice I can think of is just to try to look/act overly respectful and just have your stories straight. Seems like a visa might be helpful, but it's probably more dependent on the immigration officer than your passport.

I guess it's fairly understandable, everyone makes mistakes, I wouldn't be too worried about it.

Can you show income coming from outside of Thailand? I assume you work online or something?

You were denied entry at the airport? You didn't have a tourist visa or you did?

I think if there are suspicions, or worries of them, you should have a good story with proof of how you have been staying here....

1. You can get a reentry permit to keep your visa valid, but because it's expensive

2. Every time you enter into Thailand you'll get a new 30 days, you are limited to doing this 2x at land borders, but not limited if you fly in.

Over 30 day overstay looks bad, but I don't know if they would hold that against you.

If you can fulfill the requirements for the METV then it seems like you have a good shot at it, but that really varies by embassy.

The new passport should almost guarantee it though because they would most probably not see your history if you had one.

How difficult is it to get one? It would be nice to have but not necessary if it's difficult to get. You might end up wasting almost a full day extending your visa if you plan to stay in Thailand all 70 days.

Ah thanks, I guess I just never did it this way so I never heard about it.

I don't even leave for the non B, they always convert my tourist into a non B at immigration in Bangkok.

I don't really understand this, WP3 is the normal work permit? You need to be outside to apply for the visa sometimes but I've been in Thailand every time I've applied for my work permit.

Many times if you start working on the SETV they'll just try to get you to do that as long as you want. You're being pretty reckless by taking a job asking you to work on your SETV. You shouldn't be surprised when the school doesn't get your work permit when you're starting work on a tourist visa. I've had companies ask me to do that, but there are plenty of schools that do things more legally.