What should a Thai wife include in her letter for her husband's Non-O visa application at the Thai embassy in Savannakhet?

The contents of the letter that a Thai wife might write for her husband’s Non-O visa application at the Thai embassy in Savannakhet typically include a request for a year-long multi-entry Non-O Visa based on marriage. Key details to include are: the husband’s name, date of birth, passport number, date of marriage, the wife's name, date of birth, and her Thai ID number. However, it is noted by some users that a letter may not always be necessary, as one individual mentioned that their letter was handed back to them during a recent visit.