@Jay ****
To obtain a 90-days Non-Imm-O Retirement Visa in your home country, apply for it in the E-Visa online system of the Thai embassy in your home country.
***For the application to the 90-days Non-Imm-O visa, you can upload proof of a minimum of equivalent of 800,000 THB in your HOME bank account!
*** Enter Thailand on the 90-days Non-O Visa. Get TM30 registered at your accommodation, visit Immigration, get a “certificate of residence” from them.
Get a Thai mobile number.
Visit a bank branch and get the bank account opened
*** if the bank staff is too stupid to know how to do it, or if they are inventing rules they pull out of their noses so they do not need to service you
GET AN AGENT to get your bank account opened. The service fee should be something around 5000.- THB
*** Once the Thai bank account is opened, transfer from abroad a minimum of 800,000 THB onto it
***Wait until the 800,000 have seasoned for 2 months, get the bank letter that confirms it and visit Immigration. Apply for the
“1-year Extension of Temporary Stay Permit based on Retirement”
(which some people refer to as “retirement visa” . . but which is NOT a visa but just an extended stay permit)