Anonymous participant but I think the difference between u and me is that for me I cancelled my ed visa just after like 3 months. I wanted to change to DTV regardless of my remaining ED visa. Are you planning to apply DTV before your Ed visa expires? If you are applying only after your ED visa expires, I don’t think you need to cancel in that case I am not so sure.
Anonymous participant yes that’s right, for me my school was in chaing mai so I went there but the thing was I can only cancel my visa in chaing mai coz my school was in chaing mai. For me I told the school when I want to leave Thailand and they mentioned that date in their cancellation letter. And then I took that letter to immi office in chaing mai, they gave me stay until that specified date.
Anonymous participant I extended my stay in Cambodia just in case this happens, but I know someone who had the same problem, she left to Vietnam border and came back in with a new stamp.