Can anyone clarify the information given to me today at immigration - apparently if I put my son on a Non O visa he is not allowed to be in school in Thailand? They tell me to apply for a Non-ED and actually wrote that down. His school can do all of this for me no problem but is this the best route to take. I am getting conflicting advice - some say Non O and others say ED. He is turning 15y in November and we are busy now with the visas (British passport) Thanks in advance