I did 3 days ago n it was successful. Today received email approval. If it is your 1st time you need to go to immigration and then next time you can do online. Thats what its said in email( note: i live in khanom)
In my case is that: i also had student visa and i asked the school cancel for me because i heard if i didnt cancel I wouldnt do student visa again. And i asked school if i needed any docs to go out and they said no. I did visa run at border n came back with tourist visa again and there was no problem. But I really donโt know if i can do student visa again.