If your wanting a OA retirement visa its best to obtain a health insure on the approved list.

@Bob *********

yes, but its unlikly to be a problem because he only stayed in Thailand while getting his flight.

Yes, you take your baggage and recheck with local airline on separate ticket to Cambodia.

Yes, you go through immigration in BKK both times.

Yes, you can use the visa exemption again upon return to Thailand from Cambodia if eligible and within limits.

No METV is strictly required unless you want multiple entries guaranteed without border entry limits.

The 30 day extension is done at your closet immigration department 30 days before the orignal expires

There is a Facebook group for Thai citizenship group might worth looking at that

As long as you have money in the bank in Thailand for the visa (seasoning fund)

I think the maximum fine is about 2,000thb, but normally is not that much.

@Graham *****

yes agreed. I was meaning a statement of account activity, my office wants. I thought it was two months seasoning?

@Wannikea ********

it depends on the office my want mine on the day so the balance is the same as your bank book

Banking reference letter (for immigration) for your visa extension. It just confirms your the account holder, your account number, your balance, that type of thing, most banks are aware of the form. You should also need a 12 month statement.