I got few questions. So today my dtv got approved in Hanoi. And I already had return ticket on 30th October .
1. can I reschedule and change return ticket to earlier date? It says my visa valid from 24 October but I did tell them that my flight return ticket is on 30th October
2. what is the process for dtv holder when I enter immigration ? What do I need to do or bring
3. what is the rules once I am in the country as dtv holder? Can someone explain the 90 days report and 180 days . Like what would you recommend me to do