Can I use 800k in a Thai bank account as proof of funds for a Non O retirement visa application outside Thailand?

Jean Pacquement of course they do. I am not assuming anything, I know for sure

Soulseeker Dolphlee you can get a .pdf printout of your last account standings in your online banking App, and this is all you need to upload into the e-visa application. It does NOT matter WHERE in the World your account is, it only matters that you can show it is in your sole name

Soulseeker Dolphlee there is no more consulate in Hull. London is handling e-visa applications. You advice must be about situations already 10 years ago . . stop wasting our time

Soulseeker Dolphlee your wires are crossed. There is no bank letter requirement to apply for a Non-O visa through the London Thai embassy. He even isn't inside Thailand, so where would he get that bank statement from? All you need is 3 months of account standings pdf printout and upload these into the e-visa application. Of course the printouts should bear your name clearly indicating that the account is in your sole name. Your advice is complete rubbish