The perfect teacher has the followings: a real degree, between 25 to 45, fun, polite, from one of the 6 English speaking countries(NZ, Canada, US, Australia, UK, South Africa), criminal background check, Thai culture License.
It is not what schools want, sometimes. It depends upon the labor department. I heard a female teacher who has all the above but until this day, her work permit is still under processing. Why, the lady in Labor department is picky as hell. the paperwork has been rejected many times simply because the wrong wording. Each time, Ms. Rejectionist only tells them one mistake.
I think Sarah just had bad luck that she sent her resumes to schools which had fight with Island Tefl.