2) last 3 months bank statement plus balance confirmation letter with closing balance equals to THB
*****
0
3) No need of certified copies, just simple print is ok
4) It’s vary on application to application bases and embassy (like Canberra is bit faster) I got my DTV in only 1 day (mean I applied night time, morning time got request for some additional documents, provided within an hour of request after 4 hours got my DTV approved
Yes, actually they were not willing to grant you DTV (in other hand DTV application was rejected), so they just given you a little bit favour to grant you tourist visa just because you paid them THB