Is it possible to change a 30 days VoA to an Educational visa (assuming I have that option)? If so, how long can I extend it for and how many times?

My local immigration officer says I can change it, but another one says I can't.

A little bit complicated but it can be done and was reported before on TV that somebody did it. Here the official version:

http://www.immigration.go.th/nov2004/en/ba...p?page=service#

Thanks for the info.

If I want to study here for another 6 months, is it cheaper to get a double entry tourist visa?

By the way,I did a border run to Ranong yesterday, 18th December, for my 3rd 30 days VoA. Got it without any hassles.