Below is the sample of Vietnam Visa Approval letter.
To get this approval letter, you – the visa applicant is required to submit an Vietnam Visa application online with us. All your information will be sent to Vietnam Immigration Department for checking and approving. Then the Visa approval letter will be published.
You have this letter, it means you are allowed to enter Vietnam for a specific time and your Vietnam Visa will be issued at Vietnam airports. This letter will be sent to you by email. You just need to print it out and use it for boarding and getting the Visa at Vietnam airport.