@Richard *******

That was your problem if your marriage is not registered at your local Amphur. When you get back to the UK start this process :

1. IN THE UK: Marriage certificate legalised by the FCDO in Milton Keynes

2. IN THE UK: Marriage Certificate AND the Apostille from the FCDO Translated

3. IN THE UK: Marriage Certificate AND the Apostille from the FCDO AND their translations verified by the Thai Embassy in London

4. IN THAILAND: All the above (i.e. all 4 documents & their translations, making 8 in total) Legalised by MFA in Bangkok

then go to the Amphur

@Kate ******

That's not possible if he wants them to be on a legal permission to stay and to be able to get subsequent extensions. The 800k needs to be in the account 2 months before applying for the 12 month extension then for 3 months after the extension is granted and never fall below 400k for the rest of the year.

@Andrew *******

Yes, he says I went not we and probably had no marriage documentation as he likely took which got him 30 days on his previous stay

@Andrew *******

The OP asked for a 30 day extension and was told the right answer, cannot have one. Going back and asking for a 60 day Visit Thai Family extension while accompanied by his wife and with the correct documentation (assuming the marriage is registered in Thailand) will get a different response.

@Peter *********

There is no multi-entry 90 day eVisa

@Cissi ********

The OP planned to get an in country Non-O then open a bank account to get get the extension, never possible ;)

This has never been possible since a conversion from a tourist entry stamp to a Non-O based on retirement requires a Thai bank account with 800k (this is not just a requirement for the extension)

Look on booking dot com or a similar website

@Marianne *******

Agreed, enter on a Non-O, open a bank account and transfer 800k, get a re-entry permit for your Vietnam trip and, on your return to Thailand and after your 800k has seasoned for 2 months, apply for your 12 month extension then get a re-entry permit when your 12 months is inked in for your return later next year.

@Jude ************

why leave it that late when you can do it at least 30 days before your exit date at almost every Immigration Officer in Thailand (except 2 maybe)?