Any border, there’s no restrictions on border runs as long as you have a valid visa, but citizen from Laos might enter Thailand on a 60 days visa exemption without any visa.
You are formally required to show that the funds have been on the account for two months before you apply each year. Some immigration offices require three months, but otherwise the funds are free for use. Multiple re-entry permit is 3800 baht.
Yes, after the introduction of the e-visa system all embassies gradually stopped issuing Non-O visas with multiple entries, and this has not been possible at all this year. When you apply for a one-year extension of stay in Thailand, you simply obtain a multiple re-entry permit from Immigration. With that permit, you can enter and exit the country as you wish.
There is generally no seasoning requirement when applying for a Non-O visa based on either retirement or marriage; the two-month seasoning rule applies only to extensions of stay processed inside Thailand. Under the current e-visa system, however, Non-O visas are unfortunately issued as single-entry only.
There has been a crackdown on opening bank accounts for short-term visitors, and some banks have introduced their own internal policies requiring them to freeze the funds shown on the bank statement issued for immigration purposes. It is important to emphasise that this is solely the banks’ own practice. It has nothing to do with the immigration requirements for obtaining or extending permission to stay.
Yes, there’s no seasoning required after the extension is issued. It’s back to 400K baht minimum two months prior to your next application, some immigrations require three months.
Alright, that would explain it. If you managed to obtain a two-year compliant insurance policy at the time you applied — and that full validity is actually printed on your visa — then fine. But that’s hardly the norm. Most people only secure a one-year policy when applying and renew it later, which is exactly why immigration routinely checks updated proof upon entry.
So you only use your Non O-A visa for a single year — even though it grants up to two years of permission to stay — before applying for a new one each time? That could explain why you’ve “never been asked.”