Yes, you never know quite where you stand with any government department. I know a teacher on 7 waivers who has never shown any intention of qualifying. I went to Khrusapa for my third waiver and I was very clearly and firmly told that it was my last one. I signed up for the DipEd pretty soon afterwards I managed to get a fourth waiver on the basis of having completed the course. There are people who have just signed up for the course to get the waiver, as they need another waiver but didn't have any plans to teach in Thailand in the future.