Umm, not sure, but doesn't he meen a Thai visa getting in Vientiane ? Don't know if he needs a tourist visa instead of 60 days exempt entry đ¤ˇââī¸ Also a bit tricky on his page he says living in BKK đŦ
There is no tourist visa for 3 months. Valid for 3 months but when you enter Thailand, you can stay 60 days. After that you can get 30 days extension at an Imm. office for 1,900ā¸ŋ.
Thaiembassy.com is not a site from a Thai Embassy. Also no date. And last but not least, you have nothing to do with the Thai Embassy, you have to do with Thai Immigration.
Maybe I overlooked but which imm office you try to apply now ? Then phone a nearby imm. office if they do the "in country non imm. O". Maybe you get answers here for that nearby office or also ask in other groups like
Maybe a solution (but terrible, I understand) to go to another imm office and before, you take care that you book a hotel in the neighbourhood and that they submit a TM30. đ¤ˇââī¸