Nobody can answer your question other than the immigration officer you will stand in front of

@Max ************

true, but how many foreigners have PR

@Max ************

I've no experience of Jomtien office but that seems odd. Not to mention maintaining your bank book in such a way that it shows every transaction strikes me as being a lot more work than requesting statements once a year

@Doëlla ******

sounds a bit like an iffy visa. Is it from a legitimate school which you attend daily to learn whatever it is you're studying? And 90 get extensions of stay every 90 days based on that?

Foreigners don't go in a blue book, they either have a yellow book or no book. You may possess a blue book but your name won't be in it, in which case you need to get a yellow book

@Max ************

what immigration office do you use? Every office I'm aware of requires 12 months statements, its the only way they can verify you have met the conditions of your current extension when you apply for a new extension

You don't say what passport you hold so you don't make it easy. But for an extension of stay based on a Non-O visa aged over 50 the choices are limited. If your embassy provides an income affidavit you can use that, if it doesn't you have the option of showing 800k baht in a Thai bank or if you can show 12 months of consecutive transfers of 65k baht each month prior to applying for the extension you can use that

@Max ************

you do need to be careful with the statements from the Bangkok Bank app that they cover the period you need. If you use monthly income you just need them to show your 12 months of transfers but if you use the 800k baht method they need to go back to your prior extension date. If you request them today for example they will only go back to the 1st of September

Unless you're actively studying at bachelors level at a university I doubt very much you would get a 3rd year, and if you are why would you want a DTV

@Degen *****

when they ask to see your stamps they will know you applied from inside Thailand which is not allowed