Hello I just got the necessary documents from both of the school that I am leaving and joining later.
What form do I need to fill close the ED visa I currently have and open a new one. If possible I wanna do it without the border run. My new school tell me to do both process on the same day
TLDR : Answer Summary
To switch schools on your ED visa in Thailand without a border run, you do not need a specific form to cancel your current visa, but you will need documentation from your current school stating your last day. For the new school, you'll fill out a TM7 application for extension form. You must first cancel your current extension with documentation from your old school, then immediately apply for the new extension with documents from your new school. The ability to avoid exiting the country depends on the immigration office and the documents from both schools.