There are thousands of people from many countries that don’t have the cash for retirement visa or don’t want to put a large amount of money in Thai banks
So they go to Visa Agents who will do your retirement visa for about 30 to
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bhat . You’ll get 3 months and then 12 months giving you 15 months to see if Thailand is right for you
These agents look after everything needed to obtain a visa for you
I met many foreigners who used these agents and it’s a proper real visa
Research on line
Watch YouTube videos of expats who have YouTube channels and live in Thailand