The “Visa approval letter” is a letter issued by Vietnam Immigration Department that allows you to enter and exit Vietnam for a given time period. With the approval letter, you can pick up your visa upon arrival at one of the three international airports in Vietnam (Hanoi, Ho Chi Minh City and Da Nang).
Before issuing an approval letter, the Immigration Department checks your application thoroughly. Therefore, there is NO chance you will be REFUSED upon arrival in Vietnam if you have obtained an approval letter. However, it is strongly advised that you read our website and follow all the instructions carefully to avoid problems or delays at the airport.