@Luit ****************
1. i ask you to provide where it says you must continuously renew the application requirements for a 5-year multi-entry visa. I don’t believe that exists in writing, as been stated by many. Two different departments issue the visas and check them at immigration. So that simply is ill logic or incorrect conjecture.
2. I gave them the school info, they can call them and see what’s available themselves. Yes it’s a language/culture class but not sure where you gather the knowledge that “a Thai language program normally not qualifies for DTV,” but tbh I didn’t come here to argue with you. I told OP the FACTS that I know.