the whole process is only possible if you accept the overall wrong wording of Thai Immigration. . . . . „But a 60-days tourist visa and the 90 days Non-immigrant O are a visa. That's why it's called "Change of Visa" at immigration”
That’s where you fail!
After you entered Thailand, you have no more visa.
That’s why Immigration will just “change” your 60-days stay permit status to a “90-days Non-Imm-O visa”
They don’t change from a visa to another visa. They just change your stay permit status.
And since for Thai Immigration and their bad and wrong English, there is no difference between a visa and a stay permit, they confuse people like you.
read again: after you entered Thailand on a tourist visa, you have no visa any more. The visa becomes invalid (USED) upon entry. So pray tell me, how would Immigration be able to change your visa type, since you don't even have a visa any more ?
. . WATCH your Terminology! Actually, a single entry 60-days Tourist Visa becomes invalid when you enter Thailand. The visa is only good for ONE (single) entry. After having entered Thailand, you are inside Thailand on a 60-days stay permit, not "on a visa". Immigration doesn't "change the visa", because you don't have a tourist visa any more. Actually, they are just moving your 60-days stay permit status onto a new "visa level" - onto a 90-days stay permit. . . Immigration in their bad English call everything and your grandmother a "visa", which is technically wrong
Immigration in their wrong English call a stay permit a "visa". They even tell you that you got a 60-days visa after you have entered visa-exempt. You can DEFINITELY apply for the "change of visa type" from a visa-exempt entry to a 90-days Non-Imm-O Retirement Visa. Click on number 9 on the Website of Thai Immigration to find my interpretation confirmed
wrong. You can change from EITHER the visa-exempt entry OR the 60-days tourist visa, to a 90-days Non-Imm-O Retirement Visa . . . . this is the police order, it used to be 30 days visa-exempt and now it is 60 days,they just haven't altered the text
for the application to the "change of visa type" from a 60-days visa exempt entry to the initial 90-days Non-Imm-O retirement visa, you need to show a minimum of 800,000 THB sitting in your Thai bank account. If you don't have a Thai bank account yet, you won't be doing anything, as on a visa-exempt entry or any touristicentry, you cannot get a Thai bank account opened any more. You would need to enter Thailand on a 90-days Non-Imm-O Retirement Visa, aquired in your home country or from anywhere else in the World outside of Thailand, to be able to get a Thai bank account opened
you normally buy a re-entry permit (your choice if single or multi) for the 1-year extension as soon as the extension gets issued, on the same day. You don't need a re-entry permit for the initial 90-days stay permit out of a 90-days Non-Imm-O Retirement Visa, except if you wish to exit and re-enter Thailand during the 90-days stay permit period