it is an extension (which we know that it is technically not a "visa") that she got from inside the country...see the picture of her "extension" stamp in this post...Can you please share the rules, or how they differ, for each case 1} an "extension" given within the country, which is just the stamp with date....or 2) a proper "visa" which is a sticker issued at on embassy of thailand outside of thailand How would the rules of overstay differ?