I have a work permit and visa extension for one year. I'm working my last day on the 9th March. After that I'm going sightseeing in Bangkok and Chang Mai. My school have agreed to cancel my work permit on the 20th March. Then I will take a letter to immigration and cancel the visa extension the same day. So I will come back from Bangkok to Hua Hin and then back to Bangkok to fly on the same day. If I didn't return to Hua Hin to cancel my visa extension this would cause me a problem if I returned to Thailand in future?? Does the rule about leaving the same day a work permit is cancelled mean that I can't book a flight for the 21st March?? It feels like there's a lot to be done in one day on the 20th. Any advice?