hi - I have a non-b that expires jan 12th. I am going to vietnam for a week at that time. And planned to potentially re-enter Thailand with a tourist visa. I am considering applying for Ed visa when I return. Do I need to actively cancel my non-b - in order to re-enter and begin application for Ed Visa - or will it automatically expire and "cancel" on jan 12th? I ask because schools I have contacted keep saying I need to "cancel my non-b"... I assumed it will expire. And when I re-enter Thailand I will have a garden variety 60 day tourist visa. Any help welcome.. Thank you!!