i had a 90 day non-o based on marriage. I got a 60 days extension for 1,900B as I was waiting for my money to be in my thai bank account for at least 2 months.
Embassy asked me the same thing. I did my non immigrant O visa in Ottawa. I sent them a letter from my in-laws stating that I would stay at their home for my whole trip. 24 hours later I had my visa approved.