And I think Charlie, when coming in with a tourist visa, you have to get a re-entry permit before you leave Thailand for outside Thailand trips ! This because a Tourist visa normaly is Single Entry. However there ARE Multi entry Tourist visas.
, that's not a visa. Visa cannot be renewed. I think you mean an extension of stay. And indeed, when you entered before on a non imm O, you still need NO insurrance.
At the high rate covid time, you also needed an insurance for the non imm. O visa, in your/my home country. Now I don't know and may depend on the Thai Embassy/consulate where you applying as
I made health insurance WRLife, at aa insurance brokers. Age 65, quarterly payment 16,667฿ two months ago. 600.000$ covered, and accepted by my Thailand Pass yesterday. AA said honnestly that they have yet no experience with this company. But their policy looked okay to me. I don't hope to use them anyway for lets say 10 years, ha ha.