Thank you for your answer. I am interested in cheap insurance just to get a visa. I have a normal medical insurance in Europe and I would not like to invest in another one. I prefer to purchase a travel insurance that will cover only emergencies while I am in Thailand, which costs around 14 euro every 30 days. Non-O retirement visa doesn't help me because I stay there about 5 months a year and I want to avoid traveling to the border.