Can I use a bank letter of guarantee and statement to apply for a non-immigrant O visa in Thailand?

Ok first you to do online E visa the picture of you and all your documents to be in "jpac mode limited sizes they will give you the runaround but keep up with it. You then have 3months to do yearly extention,bangkok bank i found to be easier and ask for small health insurance, (worth the money)they say money as to be untouched for months not shore which as you only have 3months o,visa i think 2months may be right but find out first

,you can only get a o visa outside of Thailand (the easy way)

Yes the E VISA WILL ASK FOR picture of your name on bank account book and proof of money split pic half and half remember, j pac, format

Much easier if you apply online for the non o retirement visa at the Thai embassy before you come to Thailand.

That way you will be able to open a bank account in Thailand without using an agent and you do not need a flight ticket out of Thailand.

Absolutely not. If your country’s embassy won’t do the income affidavit (US, UK, Australia and perhaps others) then your only option is the banked 800k method for the initial visa and the first year extension.