Hi, just applied for DTV visa in Hanoï.
My passport is french passport issued in Bangkok so maybe they read it wrongly.
I check all informations 5 times before applying everything was good and they cancelled my visa.
The reason ? 
Your visa application has been cancelled. Wrong country of passport
What should I do ? Should I try to call them ? Because I’m scared applying again and losing 350$ again.
TLDR : Answer Summary
A user reported their DTV visa application was cancelled because the issuing country of their French passport was not entered correctly during the application process. They are unsure whether to contact the authorities or attempt to reapply, fearing another financial loss. Commenters suggest checking details in the application, potentially contact immigration officials or seek assistance from an agent, and emphasize the importance of identifying the passport's issuing authority accurately.
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