You can either apply by yourself through Vietnamese Embassies or Consulates in your country or using a local travel agent's service (your sponsor) to do a part or full of its procedure.
By yourself:
Through local travel agency:
Provide Vietnam visa on arrival service. Please refer to the Detailed visa procedure and services for more information.
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Fill in the secure online form only takes a couple of minutes.
Confirm the information for processing your visa and pay the service fee.
Get the "Visa approval letter" within 2 working days and pick up your visa at airports.