I’m currently in self isolation but will soon if ok have to go to Hua hin immigration to make my first annual extension of my o-a visa based on retirement. I have my 800000 baht seasoned in my account for 2 months already and am trying to arrange the health insurance now . Could someone please tell me what else I need to take with me . I can’t go there to get a list yet and really would appreciate it if someone who has done it at Hua Hin immigration can help me . My visa expires at end of April but hopefully I can go about the 15 th ,if I’m ok .finally would my insurance need to begin on the date I apply or the end of April when visa expires . Many thanks