I don't. I pay my home institution in the US for the classes I take here as I am an exchange student.. but I'm sure if you look up Chula University you could find the cost per credit. The courses are 3 credits each.
I stayed at Qiu for my ASQ and they did 4 tests and went 3+ inches deep in both nostrils as well as swabbed my throat.. each time. It was pretty shitty but I think my brains ok. 😂 I have to say the pcr tests I got back in the US were easier. They were similar in depth but the people doing them were much gentler.
Yes, I just recently got an ED Visa as I am studying here in Bangkok. However, you have to be accepted into the school before you can apply I believe. It wasn't too hard to get it but it took awhile and a lot of documentation. Plus you need covid insurance now as well and have to prove documentation of that. I am currently learning Thai at Chulalongkorn University. It's not a language school but the professor is very good. Good luck!! :)