You can’t apply for a Non O-A in Thailand. Only a 90 days Non O visa and apply for a one year extension of stay.
As you seem to be from the US your embassy in Bangkok doesn’t offer to give you a affidavit letter regarding income, so you’ll need to prove 800K baht in your account in Thailand as an international transfer to apply. For the second year you can switch to the income method by showing proof of twelve months consecutive transfers of minimum 65K baht a month.
You’ll need 14-21 days left on your stamp to apply but your biggest issue will be to opening a bank account in Thailand on a short stay. If you apply for the 90 days Non O visa at home before you leave with your income or funds, you’re making everything more easy for yourself.
Regarding opening bank accounts most bank requires minimum a Non O visa, some also your first year extension of stay.
Yes, citizens of the 93 countries not included in the new visa exemption scheme has to apply for a tourist visa to get a 60 days stay and citizen of the 31 countries included in Visa On Arrival Scheme can apply for a 15 days visa when they come. But this is still often mixed up with visa exemption.
Ok I understand, I’ve had an account for several years and are still able to call unlimited from Thailand to Norway at 10 USD a month, but as I understand it closes down in may.
I Know this is this the only official regarding thing. But I also know several Norwegians around have had problems regarding this and have to get new updated affidavits.
I advise you to check this up with your immigration first, as some immigrations only accept a affidavit within the last 30 days. Just so you don’t risk to get short in time.
Yes I’ve registered that you can’t by credit anymore, but I call unlimited from Thailand to any telephone number in Norway for one month at approximately 10 USD.