Did you apply in person in HCMC or did you do it online while there? If you did it in person did they hold onto your passport the whole time? I'm scared to apply in person in a foreign country and not know how long I'd have to stay if they take my passport during processing.
Did you apply in person at the Jakarta Thai embassy? Did they take your passport for the entire 3 days? Also for your bank statement did you show all your expenses or was the summary page with balance enough?