I am applying for the Dtv in Ho Chi Minh, but my friend is letting me stay at his apartment while he is away in the US and i‘m paying him directly.

Do i Need to book a hotel to show physical proof i’m in vietnam or can i explain my unique situation?

If i need to book a hotel, how many days does it need to be booked?

Either way is fine but i need to be prepared

Can someone confirm the entry stamp is correct or not?

Looks like I only recieved 11 months?

If we have the multi entry visa and we arrive back just few days before the 6 months are over, do we still get 60 days or only until the end of the 6 months?