there are so many Non-O options it's easy to pick the wrong one. They don't always enter something in the remarks, but if they do immigration can't provide an extension for anything but that reason.
that appears to read "contact business", I'm guessing he applied using one of the other reasons for a Non-O such as trailing spouse of someone working inside Thailand
Can you share a photo of what you have? Particularly the visa type and the remarks. The first extension must always be for the reason the visa was issued but something doesn't tie up here