I think the obvious options are non o or oa retirement visas.
The non oa requires specific insurance and criminal checks etc.
THE non O requires you to deposit 800,000 baht in Thailand.
If you get the non O apply in the UK and then open a bank account, deposit 800,000, then once the money has been in the bank for 2 months extend your stay by 12 months and get a multiple re-entry permit at immigration. You can then extend every year.
yes that would be a pain. They are just being awkward, they can provide the papers easily for you, as I said when I moved from Hua Hin to Sriracha I asked them to transfer my account and they said they couldn't, so I asked them for the documents for immigration and they gave me them immediately, so it's definitely possible, but TiT.
makes sense Graham. I presumed it would revert at some point, I just hadn't seen any comments stating it had happened. Is the wording 'funds for long term stay in Thailand' or similar?
Most people seem to use Wise to transfer the funds using the code for purchasing a property. It then shows as an international transfer (unless this has changed again).