A bit of forward planning on your ED visa could have sorted this for you. You could have opened a bank account and transferred a monthly 65k baht for 12 months while studying. Then, when it came to applying for your retirement visa, you would have had proof of funds without having to go down the 800k route. Not much use now unless you can continue on an ED visa a while longer and happy to be corrected.
Don’t need a TV to enter. You can enter the country for 30 days, visa exempt if you’re from a qualifying country. But I would get a 60 day TV and extend 30 more days and then get ED Visa. Maybe a trip over the border if the TV extension and ED overlap.
I hear you but a bit confused. If I wanted to come to Thailand for
***
months only (not retire) and wanted a non O to cover me after having, let’s say a 60 TV, are you saying I’d need to open a bank account and deposit 800k just to get the O visa inside Thailand?